diff --git a/backend/src/course/course.controller.spec.ts b/backend/src/course/course.controller.spec.ts
index 3b3a456a..3f864633 100644
--- a/backend/src/course/course.controller.spec.ts
+++ b/backend/src/course/course.controller.spec.ts
@@ -40,7 +40,6 @@ describe('CourseController', () => {
         imageUrl:
           'https://in.images.search.yahoo.com/images/view;_ylt=Awr1SSiRTy1kb4cLLsq9HAx.;_ylu=c2VjA3NyBHNsawNpbWcEb2lkAzQyZTY0MDk5ZDU4ZTA0NjIxZGIyOTFiMzFhNjU3YmIxBGdwb3MDMjAEaXQDYmluZw--?back=https%3A%2F%2Fin.images.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Dclean%2Bcode%26type%3DE211IN826G0%26fr%3Dmcafee%26fr2%3Dpiv-web%26tab%3Dorganic%26ri%3D20&w=1280&h=720&imgurl=i.ytimg.com%2Fvi%2F4LUNr4AeLZM%2Fmaxresdefault.jpg&rurl=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D4LUNr4AeLZM&size=138.8KB&p=clean+code&oid=42e64099d58e04621db291b31a657bb1&fr2=piv-web&fr=mcafee&tt=Clean+Code%21+-+YouTube&b=0&ni=21&no=20&ts=&tab=organic&sigr=BwBZBBbiDgZS&sigb=N4X2keUrYF9q&sigi=E7Tff6GG25xa&sigt=NZfjbeVtrurr&.crumb=AVdd1qPlDGC&fr=mcafee&fr2=piv-web&type=E211IN826G0',
         credit: 10,
-        tags: [1],
         description: 'description',
       },
       {
@@ -52,7 +51,6 @@ describe('CourseController', () => {
         imageUrl:
           'https://in.images.search.yahoo.com/images/view;_ylt=Awr1SSiRTy1kb4cLLsq9HAx.;_ylu=c2VjA3NyBHNsawNpbWcEb2lkAzQyZTY0MDk5ZDU4ZTA0NjIxZGIyOTFiMzFhNjU3YmIxBGdwb3MDMjAEaXQDYmluZw--?back=https%3A%2F%2Fin.images.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Dclean%2Bcode%26type%3DE211IN826G0%26fr%3Dmcafee%26fr2%3Dpiv-web%26tab%3Dorganic%26ri%3D20&w=1280&h=720&imgurl=i.ytimg.com%2Fvi%2F4LUNr4AeLZM%2Fmaxresdefault.jpg&rurl=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D4LUNr4AeLZM&size=138.8KB&p=clean+code&oid=42e64099d58e04621db291b31a657bb1&fr2=piv-web&fr=mcafee&tt=Clean+Code%21+-+YouTube&b=0&ni=21&no=20&ts=&tab=organic&sigr=BwBZBBbiDgZS&sigb=N4X2keUrYF9q&sigi=E7Tff6GG25xa&sigt=NZfjbeVtrurr&.crumb=AVdd1qPlDGC&fr=mcafee&fr2=piv-web&type=E211IN826G0',
         credit: 10,
-        tags: [1],
         description: 'description',
       },
     ];
@@ -65,7 +63,6 @@ describe('CourseController', () => {
         testUrls: courses[0].testUrls,
         imageUrl: courses[0].imageUrl,
         credit: courses[0].credit,
-        tags: courses[0].tags,
         description: courses[0].description,
         createdAt: Date.prototype,
         updatedAt: Date.prototype,
@@ -77,7 +74,6 @@ describe('CourseController', () => {
         testUrls: courses[1].testUrls,
         imageUrl: courses[1].imageUrl,
         credit: courses[1].credit,
-        tags: courses[1].tags,
         description: courses[1].description,
         createdAt: Date.prototype,
         updatedAt: Date.prototype,
@@ -99,7 +95,6 @@ describe('CourseController', () => {
       imageUrl:
         'https://in.images.search.yahoo.com/images/view;_ylt=Awr1SSiRTy1kb4cLLsq9HAx.;_ylu=c2VjA3NyBHNsawNpbWcEb2lkAzQyZTY0MDk5ZDU4ZTA0NjIxZGIyOTFiMzFhNjU3YmIxBGdwb3MDMjAEaXQDYmluZw--?back=https%3A%2F%2Fin.images.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Dclean%2Bcode%26type%3DE211IN826G0%26fr%3Dmcafee%26fr2%3Dpiv-web%26tab%3Dorganic%26ri%3D20&w=1280&h=720&imgurl=i.ytimg.com%2Fvi%2F4LUNr4AeLZM%2Fmaxresdefault.jpg&rurl=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D4LUNr4AeLZM&size=138.8KB&p=clean+code&oid=42e64099d58e04621db291b31a657bb1&fr2=piv-web&fr=mcafee&tt=Clean+Code%21+-+YouTube&b=0&ni=21&no=20&ts=&tab=organic&sigr=BwBZBBbiDgZS&sigb=N4X2keUrYF9q&sigi=E7Tff6GG25xa&sigt=NZfjbeVtrurr&.crumb=AVdd1qPlDGC&fr=mcafee&fr2=piv-web&type=E211IN826G0',
       credit: 10,
-      tags: [1],
       description: 'description',
     };
     const mockResponse: Course = {
@@ -130,7 +125,6 @@ describe('CourseController', () => {
         imageUrl:
           'https://in.images.search.yahoo.com/images/view;_ylt=Awr1SSiRTy1kb4cLLsq9HAx.;_ylu=c2VjA3NyBHNsawNpbWcEb2lkAzQyZTY0MDk5ZDU4ZTA0NjIxZGIyOTFiMzFhNjU3YmIxBGdwb3MDMjAEaXQDYmluZw--?back=https%3A%2F%2Fin.images.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Dclean%2Bcode%26type%3DE211IN826G0%26fr%3Dmcafee%26fr2%3Dpiv-web%26tab%3Dorganic%26ri%3D20&w=1280&h=720&imgurl=i.ytimg.com%2Fvi%2F4LUNr4AeLZM%2Fmaxresdefault.jpg&rurl=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D4LUNr4AeLZM&size=138.8KB&p=clean+code&oid=42e64099d58e04621db291b31a657bb1&fr2=piv-web&fr=mcafee&tt=Clean+Code%21+-+YouTube&b=0&ni=21&no=20&ts=&tab=organic&sigr=BwBZBBbiDgZS&sigb=N4X2keUrYF9q&sigi=E7Tff6GG25xa&sigt=NZfjbeVtrurr&.crumb=AVdd1qPlDGC&fr=mcafee&fr2=piv-web&type=E211IN826G0',
         credit: 10,
-        tags: [1],
         description: 'description',
       },
       {
@@ -142,7 +136,6 @@ describe('CourseController', () => {
         imageUrl:
           'https://in.images.search.yahoo.com/images/view;_ylt=Awr1SSiRTy1kb4cLLsq9HAx.;_ylu=c2VjA3NyBHNsawNpbWcEb2lkAzQyZTY0MDk5ZDU4ZTA0NjIxZGIyOTFiMzFhNjU3YmIxBGdwb3MDMjAEaXQDYmluZw--?back=https%3A%2F%2Fin.images.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Dclean%2Bcode%26type%3DE211IN826G0%26fr%3Dmcafee%26fr2%3Dpiv-web%26tab%3Dorganic%26ri%3D20&w=1280&h=720&imgurl=i.ytimg.com%2Fvi%2F4LUNr4AeLZM%2Fmaxresdefault.jpg&rurl=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D4LUNr4AeLZM&size=138.8KB&p=clean+code&oid=42e64099d58e04621db291b31a657bb1&fr2=piv-web&fr=mcafee&tt=Clean+Code%21+-+YouTube&b=0&ni=21&no=20&ts=&tab=organic&sigr=BwBZBBbiDgZS&sigb=N4X2keUrYF9q&sigi=E7Tff6GG25xa&sigt=NZfjbeVtrurr&.crumb=AVdd1qPlDGC&fr=mcafee&fr2=piv-web&type=E211IN826G0',
         credit: 10,
-        tags: [1, 2],
         description: 'description',
       },
     ];
@@ -154,7 +147,6 @@ describe('CourseController', () => {
       testUrls: courses[1].testUrls,
       imageUrl: courses[1].imageUrl,
       credit: courses[1].credit,
-      tags: courses[1].tags,
       description: courses[1].description,
       createdAt: Date.prototype,
       updatedAt: Date.prototype,
@@ -178,7 +170,6 @@ describe('CourseController', () => {
         imageUrl:
           'https://in.images.search.yahoo.com/images/view;_ylt=Awr1SSiRTy1kb4cLLsq9HAx.;_ylu=c2VjA3NyBHNsawNpbWcEb2lkAzQyZTY0MDk5ZDU4ZTA0NjIxZGIyOTFiMzFhNjU3YmIxBGdwb3MDMjAEaXQDYmluZw--?back=https%3A%2F%2Fin.images.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Dclean%2Bcode%26type%3DE211IN826G0%26fr%3Dmcafee%26fr2%3Dpiv-web%26tab%3Dorganic%26ri%3D20&w=1280&h=720&imgurl=i.ytimg.com%2Fvi%2F4LUNr4AeLZM%2Fmaxresdefault.jpg&rurl=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D4LUNr4AeLZM&size=138.8KB&p=clean+code&oid=42e64099d58e04621db291b31a657bb1&fr2=piv-web&fr=mcafee&tt=Clean+Code%21+-+YouTube&b=0&ni=21&no=20&ts=&tab=organic&sigr=BwBZBBbiDgZS&sigb=N4X2keUrYF9q&sigi=E7Tff6GG25xa&sigt=NZfjbeVtrurr&.crumb=AVdd1qPlDGC&fr=mcafee&fr2=piv-web&type=E211IN826G0',
         credit: 10,
-        tags: [1],
         description: 'description',
       },
       {
@@ -190,7 +181,6 @@ describe('CourseController', () => {
         imageUrl:
           'https://in.images.search.yahoo.com/images/view;_ylt=Awr1SSiRTy1kb4cLLsq9HAx.;_ylu=c2VjA3NyBHNsawNpbWcEb2lkAzQyZTY0MDk5ZDU4ZTA0NjIxZGIyOTFiMzFhNjU3YmIxBGdwb3MDMjAEaXQDYmluZw--?back=https%3A%2F%2Fin.images.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Dclean%2Bcode%26type%3DE211IN826G0%26fr%3Dmcafee%26fr2%3Dpiv-web%26tab%3Dorganic%26ri%3D20&w=1280&h=720&imgurl=i.ytimg.com%2Fvi%2F4LUNr4AeLZM%2Fmaxresdefault.jpg&rurl=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D4LUNr4AeLZM&size=138.8KB&p=clean+code&oid=42e64099d58e04621db291b31a657bb1&fr2=piv-web&fr=mcafee&tt=Clean+Code%21+-+YouTube&b=0&ni=21&no=20&ts=&tab=organic&sigr=BwBZBBbiDgZS&sigb=N4X2keUrYF9q&sigi=E7Tff6GG25xa&sigt=NZfjbeVtrurr&.crumb=AVdd1qPlDGC&fr=mcafee&fr2=piv-web&type=E211IN826G0',
         credit: 10,
-        tags: [1],
         description: 'description',
       },
     ];
@@ -203,7 +193,6 @@ describe('CourseController', () => {
         testUrls: courses[0].testUrls,
         imageUrl: courses[0].imageUrl,
         credit: courses[0].credit,
-        tags: courses[0].tags,
         description: courses[0].description,
         createdAt: Date.prototype,
         updatedAt: Date.prototype,
@@ -215,7 +204,6 @@ describe('CourseController', () => {
         testUrls: courses[1].testUrls,
         imageUrl: courses[1].imageUrl,
         credit: courses[1].credit,
-        tags: courses[1].tags,
         description: courses[1].description,
         createdAt: Date.prototype,
         updatedAt: Date.prototype,
@@ -235,7 +223,6 @@ describe('CourseController', () => {
       imageUrl: 'image1',
       credit: 10,
       description: 'description',
-      tags: [1, 3],
     };
     const responseCourse: Course = {
       id: '7e67a826-636f-4fa7-a7a8-f1d57573f95f',
@@ -263,7 +250,6 @@ describe('CourseController', () => {
       imageUrl: 'image1',
       credit: 10,
       description: 'description',
-      tags: [2],
       name: '',
     };
     const responseCourse: Course = {
diff --git a/backend/src/course/course.service.spec.ts b/backend/src/course/course.service.spec.ts
index d583630d..43d78827 100644
--- a/backend/src/course/course.service.spec.ts
+++ b/backend/src/course/course.service.spec.ts
@@ -60,7 +60,6 @@ describe('CourseService', () => {
           imageUrl:
             'https://in.images.search.yahoo.com/images/view;_ylt=Awr1SSiRTy1kb4cLLsq9HAx.;_ylu=c2VjA3NyBHNsawNpbWcEb2lkAzQyZTY0MDk5ZDU4ZTA0NjIxZGIyOTFiMzFhNjU3YmIxBGdwb3MDMjAEaXQDYmluZw--?back=https%3A%2F%2Fin.images.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Dclean%2Bcode%26type%3DE211IN826G0%26fr%3Dmcafee%26fr2%3Dpiv-web%26tab%3Dorganic%26ri%3D20&w=1280&h=720&imgurl=i.ytimg.com%2Fvi%2F4LUNr4AeLZM%2Fmaxresdefault.jpg&rurl=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D4LUNr4AeLZM&size=138.8KB&p=clean+code&oid=42e64099d58e04621db291b31a657bb1&fr2=piv-web&fr=mcafee&tt=Clean+Code%21+-+YouTube&b=0&ni=21&no=20&ts=&tab=organic&sigr=BwBZBBbiDgZS&sigb=N4X2keUrYF9q&sigi=E7Tff6GG25xa&sigt=NZfjbeVtrurr&.crumb=AVdd1qPlDGC&fr=mcafee&fr2=piv-web&type=E211IN826G0',
           credit: 10,
-          tags: [1],
           description: 'description',
         },
         {
@@ -72,7 +71,6 @@ describe('CourseService', () => {
           imageUrl:
             'https://in.images.search.yahoo.com/images/view;_ylt=Awr1SSiRTy1kb4cLLsq9HAx.;_ylu=c2VjA3NyBHNsawNpbWcEb2lkAzQyZTY0MDk5ZDU4ZTA0NjIxZGIyOTFiMzFhNjU3YmIxBGdwb3MDMjAEaXQDYmluZw--?back=https%3A%2F%2Fin.images.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Dclean%2Bcode%26type%3DE211IN826G0%26fr%3Dmcafee%26fr2%3Dpiv-web%26tab%3Dorganic%26ri%3D20&w=1280&h=720&imgurl=i.ytimg.com%2Fvi%2F4LUNr4AeLZM%2Fmaxresdefault.jpg&rurl=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D4LUNr4AeLZM&size=138.8KB&p=clean+code&oid=42e64099d58e04621db291b31a657bb1&fr2=piv-web&fr=mcafee&tt=Clean+Code%21+-+YouTube&b=0&ni=21&no=20&ts=&tab=organic&sigr=BwBZBBbiDgZS&sigb=N4X2keUrYF9q&sigi=E7Tff6GG25xa&sigt=NZfjbeVtrurr&.crumb=AVdd1qPlDGC&fr=mcafee&fr2=piv-web&type=E211IN826G0',
           credit: 10,
-          tags: [1, 2],
           description: 'description',
         },
       ];
@@ -85,7 +83,6 @@ describe('CourseService', () => {
           testUrls: courses[0].testUrls,
           imageUrl: courses[0].imageUrl,
           credit: courses[0].credit,
-          tags: courses[0].tags,
           description: courses[0].description,
           createdAt: Date.prototype,
           updatedAt: Date.prototype,
@@ -97,7 +94,6 @@ describe('CourseService', () => {
           testUrls: courses[1].testUrls,
           imageUrl: courses[1].imageUrl,
           credit: courses[1].credit,
-          tags: courses[1].tags,
           description: courses[1].description,
           createdAt: Date.prototype,
           updatedAt: Date.prototype,
@@ -122,7 +118,6 @@ describe('CourseService', () => {
         imageUrl:
           'https://in.images.search.yahoo.com/images/view;_ylt=Awr1SSiRTy1kb4cLLsq9HAx.;_ylu=c2VjA3NyBHNsawNpbWcEb2lkAzQyZTY0MDk5ZDU4ZTA0NjIxZGIyOTFiMzFhNjU3YmIxBGdwb3MDMjAEaXQDYmluZw--?back=https%3A%2F%2Fin.images.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Dclean%2Bcode%26type%3DE211IN826G0%26fr%3Dmcafee%26fr2%3Dpiv-web%26tab%3Dorganic%26ri%3D20&w=1280&h=720&imgurl=i.ytimg.com%2Fvi%2F4LUNr4AeLZM%2Fmaxresdefault.jpg&rurl=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D4LUNr4AeLZM&size=138.8KB&p=clean+code&oid=42e64099d58e04621db291b31a657bb1&fr2=piv-web&fr=mcafee&tt=Clean+Code%21+-+YouTube&b=0&ni=21&no=20&ts=&tab=organic&sigr=BwBZBBbiDgZS&sigb=N4X2keUrYF9q&sigi=E7Tff6GG25xa&sigt=NZfjbeVtrurr&.crumb=AVdd1qPlDGC&fr=mcafee&fr2=piv-web&type=E211IN826G0',
         credit: 10,
-        tags: [1],
         description: 'description',
       };
       const mockResponse = {
@@ -132,7 +127,6 @@ describe('CourseService', () => {
         testUrls: courses.testUrls,
         imageUrl: courses.imageUrl,
         credit: courses.credit,
-        tags: courses.tags,
         description: courses.description,
         createdAt: Date.prototype,
         updatedAt: Date.prototype,
@@ -157,7 +151,6 @@ describe('CourseService', () => {
           imageUrl:
             'https://in.images.search.yahoo.com/images/view;_ylt=Awr1SSiRTy1kb4cLLsq9HAx.;_ylu=c2VjA3NyBHNsawNpbWcEb2lkAzQyZTY0MDk5ZDU4ZTA0NjIxZGIyOTFiMzFhNjU3YmIxBGdwb3MDMjAEaXQDYmluZw--?back=https%3A%2F%2Fin.images.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Dclean%2Bcode%26type%3DE211IN826G0%26fr%3Dmcafee%26fr2%3Dpiv-web%26tab%3Dorganic%26ri%3D20&w=1280&h=720&imgurl=i.ytimg.com%2Fvi%2F4LUNr4AeLZM%2Fmaxresdefault.jpg&rurl=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D4LUNr4AeLZM&size=138.8KB&p=clean+code&oid=42e64099d58e04621db291b31a657bb1&fr2=piv-web&fr=mcafee&tt=Clean+Code%21+-+YouTube&b=0&ni=21&no=20&ts=&tab=organic&sigr=BwBZBBbiDgZS&sigb=N4X2keUrYF9q&sigi=E7Tff6GG25xa&sigt=NZfjbeVtrurr&.crumb=AVdd1qPlDGC&fr=mcafee&fr2=piv-web&type=E211IN826G0',
           credit: 10,
-          tags: [1],
           description: 'description',
         },
         {
@@ -169,7 +162,6 @@ describe('CourseService', () => {
           imageUrl:
             'https://in.images.search.yahoo.com/images/view;_ylt=Awr1SSiRTy1kb4cLLsq9HAx.;_ylu=c2VjA3NyBHNsawNpbWcEb2lkAzQyZTY0MDk5ZDU4ZTA0NjIxZGIyOTFiMzFhNjU3YmIxBGdwb3MDMjAEaXQDYmluZw--?back=https%3A%2F%2Fin.images.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Dclean%2Bcode%26type%3DE211IN826G0%26fr%3Dmcafee%26fr2%3Dpiv-web%26tab%3Dorganic%26ri%3D20&w=1280&h=720&imgurl=i.ytimg.com%2Fvi%2F4LUNr4AeLZM%2Fmaxresdefault.jpg&rurl=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D4LUNr4AeLZM&size=138.8KB&p=clean+code&oid=42e64099d58e04621db291b31a657bb1&fr2=piv-web&fr=mcafee&tt=Clean+Code%21+-+YouTube&b=0&ni=21&no=20&ts=&tab=organic&sigr=BwBZBBbiDgZS&sigb=N4X2keUrYF9q&sigi=E7Tff6GG25xa&sigt=NZfjbeVtrurr&.crumb=AVdd1qPlDGC&fr=mcafee&fr2=piv-web&type=E211IN826G0',
           credit: 10,
-          tags: [1, 2],
           description: 'description',
         },
       ];
@@ -181,7 +173,6 @@ describe('CourseService', () => {
         testUrls: courses[1].testUrls,
         imageUrl: courses[1].imageUrl,
         credit: courses[1].credit,
-        tags: courses[1].tags,
         description: courses[1].description,
         createdAt: Date.prototype,
         updatedAt: Date.prototype,
@@ -222,7 +213,6 @@ describe('CourseService', () => {
           imageUrl:
             'https://in.images.search.yahoo.com/images/view;_ylt=Awr1SSiRTy1kb4cLLsq9HAx.;_ylu=c2VjA3NyBHNsawNpbWcEb2lkAzQyZTY0MDk5ZDU4ZTA0NjIxZGIyOTFiMzFhNjU3YmIxBGdwb3MDMjAEaXQDYmluZw--?back=https%3A%2F%2Fin.images.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Dclean%2Bcode%26type%3DE211IN826G0%26fr%3Dmcafee%26fr2%3Dpiv-web%26tab%3Dorganic%26ri%3D20&w=1280&h=720&imgurl=i.ytimg.com%2Fvi%2F4LUNr4AeLZM%2Fmaxresdefault.jpg&rurl=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D4LUNr4AeLZM&size=138.8KB&p=clean+code&oid=42e64099d58e04621db291b31a657bb1&fr2=piv-web&fr=mcafee&tt=Clean+Code%21+-+YouTube&b=0&ni=21&no=20&ts=&tab=organic&sigr=BwBZBBbiDgZS&sigb=N4X2keUrYF9q&sigi=E7Tff6GG25xa&sigt=NZfjbeVtrurr&.crumb=AVdd1qPlDGC&fr=mcafee&fr2=piv-web&type=E211IN826G0',
           credit: 10,
-          tags: [1],
           description: 'description',
         },
         {
@@ -234,7 +224,6 @@ describe('CourseService', () => {
           imageUrl:
             'https://in.images.search.yahoo.com/images/view;_ylt=Awr1SSiRTy1kb4cLLsq9HAx.;_ylu=c2VjA3NyBHNsawNpbWcEb2lkAzQyZTY0MDk5ZDU4ZTA0NjIxZGIyOTFiMzFhNjU3YmIxBGdwb3MDMjAEaXQDYmluZw--?back=https%3A%2F%2Fin.images.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Dclean%2Bcode%26type%3DE211IN826G0%26fr%3Dmcafee%26fr2%3Dpiv-web%26tab%3Dorganic%26ri%3D20&w=1280&h=720&imgurl=i.ytimg.com%2Fvi%2F4LUNr4AeLZM%2Fmaxresdefault.jpg&rurl=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D4LUNr4AeLZM&size=138.8KB&p=clean+code&oid=42e64099d58e04621db291b31a657bb1&fr2=piv-web&fr=mcafee&tt=Clean+Code%21+-+YouTube&b=0&ni=21&no=20&ts=&tab=organic&sigr=BwBZBBbiDgZS&sigb=N4X2keUrYF9q&sigi=E7Tff6GG25xa&sigt=NZfjbeVtrurr&.crumb=AVdd1qPlDGC&fr=mcafee&fr2=piv-web&type=E211IN826G0',
           credit: 10,
-          tags: [1],
           description: 'description',
         },
       ];
@@ -248,7 +237,6 @@ describe('CourseService', () => {
           testUrls: courses[0].testUrls,
           imageUrl: courses[0].imageUrl,
           credit: courses[0].credit,
-          tags: courses[0].tags,
           description: courses[0].description,
           createdAt: Date.prototype,
           updatedAt: Date.prototype,
@@ -260,7 +248,6 @@ describe('CourseService', () => {
           testUrls: courses[1].testUrls,
           imageUrl: courses[1].imageUrl,
           credit: courses[1].credit,
-          tags: courses[1].tags,
           description: courses[1].description,
           createdAt: Date.prototype,
           updatedAt: Date.prototype,
@@ -300,8 +287,8 @@ describe('CourseService', () => {
         testUrls: ['testurl1'],
         imageUrl: 'image1',
         credit: 10,
+        tags: [1, 2],
         description: 'description',
-        tags: [1, 3],
       };
       const responseCourse: Course = {
         id: '7e67a826-636f-4fa7-a7a8-f1d57573f95f',
@@ -344,7 +331,6 @@ describe('CourseService', () => {
         imageUrl: 'image1',
         credit: 10,
         description: 'description',
-        tags: [1, 3],
       };
       const responseCourse: Course = {
         id: '7e67a826-636f-4fa7-a7a8-f1d57573f95f',
@@ -373,8 +359,8 @@ describe('CourseService', () => {
         testUrls: ['testurl2'],
         imageUrl: 'image1',
         credit: 10,
+        tags: [1, 2],
         description: 'description',
-        tags: [2],
         name: '',
       };
       const responseCourse = {
@@ -384,7 +370,6 @@ describe('CourseService', () => {
         testUrls: ['testurl2'],
         imageUrl: 'image1',
         credit: 10,
-        tags: [2],
         description: 'description',
         createdAt: Date.prototype,
         updatedAt: Date.prototype,
@@ -416,7 +401,6 @@ describe('CourseService', () => {
         imageUrl: 'image1',
         credit: 10,
         description: 'description',
-        tags: [2],
         name: '',
       };
 
diff --git a/backend/src/course/dto/course.dto.ts b/backend/src/course/dto/course.dto.ts
index f1d9123e..09068779 100644
--- a/backend/src/course/dto/course.dto.ts
+++ b/backend/src/course/dto/course.dto.ts
@@ -16,7 +16,7 @@ export class CourseDto {
   @IsNotEmpty()
   credit: number;
 
-  tags: number[];
+  tags?: number[];
 
   description: string;
 }
diff --git a/backend/src/course/dto/updateCourse.dto.ts b/backend/src/course/dto/updateCourse.dto.ts
index afae4912..abc746fa 100644
--- a/backend/src/course/dto/updateCourse.dto.ts
+++ b/backend/src/course/dto/updateCourse.dto.ts
@@ -4,6 +4,6 @@ export class updateCourseDto {
   testUrls: string[];
   imageUrl: string;
   credit: number;
-  tags: number[];
+  tags?: number[];
   description: string;
 }
diff --git a/backend/src/user/user.controller.spec.ts b/backend/src/user/user.controller.spec.ts
index 53103b10..7a2e46bb 100644
--- a/backend/src/user/user.controller.spec.ts
+++ b/backend/src/user/user.controller.spec.ts
@@ -99,7 +99,6 @@ describe('UserController', () => {
             testUrls: [''],
             imageUrl: 'https://docs.nestjs.com/assets/logo-small.svg',
             credit: 10,
-            tags: [3],
             description: 'description',
             createdAt: Date.prototype,
             updatedAt: Date.prototype,
@@ -125,7 +124,6 @@ describe('UserController', () => {
             testUrls: [''],
             imageUrl: 'https://docs.nestjs.com/assets/logo-small.svg',
             credit: 10,
-            tags: [3],
             description: 'description',
             createdAt: Date.prototype,
             updatedAt: Date.prototype,
diff --git a/backend/src/user/user.service.spec.ts b/backend/src/user/user.service.spec.ts
index 0d59451b..38bdc46b 100644
--- a/backend/src/user/user.service.spec.ts
+++ b/backend/src/user/user.service.spec.ts
@@ -106,7 +106,6 @@ describe('UserService', () => {
         testUrls: [''],
         imageUrl: 'https://docs.nestjs.com/assets/logo-small.svg',
         credit: 10,
-        tags: [3],
         description: 'description',
         createdAt: Date.prototype,
         updatedAt: Date.prototype,
@@ -120,7 +119,6 @@ describe('UserService', () => {
         testUrls: [''],
         imageUrl: 'https://docs.nestjs.com/assets/logo-small.svg',
         credit: 10,
-        tags: [1, 2],
         description: 'description',
         createdAt: Date.prototype,
         updatedAt: Date.prototype,
@@ -134,7 +132,6 @@ describe('UserService', () => {
         testUrls: [''],
         imageUrl: 'https://docs.nestjs.com/assets/logo-small.svg',
         credit: 10,
-        tags: [7, 6],
         description: 'description',
         createdAt: Date.prototype,
         updatedAt: Date.prototype,
@@ -202,7 +199,6 @@ describe('UserService', () => {
         testUrls: [''],
         imageUrl: 'https://docs.nestjs.com/assets/logo-small.svg',
         credit: 10,
-        tags: [3],
         description: 'description',
         createdAt: Date.prototype,
         updatedAt: Date.prototype,
@@ -216,7 +212,6 @@ describe('UserService', () => {
         testUrls: [''],
         imageUrl: 'https://docs.nestjs.com/assets/logo-small.svg',
         credit: 10,
-        tags: [1, 2],
         description: 'description',
         createdAt: Date.prototype,
         updatedAt: Date.prototype,
@@ -553,7 +548,6 @@ describe('UserService', () => {
     it('should return 0 if the user is not enrolled for course', async () => {
       const mockCourse: Course = {
         id: 'course1',
-
         name: 'name',
         resourseUrls: [],
         testUrls: [],
@@ -582,7 +576,6 @@ describe('UserService', () => {
     it('should return 1 if the user is enrolled for course but not completed the course', async () => {
       const mockCourse: Course = {
         id: 'course1',
-
         name: 'name',
         resourseUrls: [],
         testUrls: [],
@@ -618,7 +611,6 @@ describe('UserService', () => {
     it('should return 2 if the user has completed the course', async () => {
       const mockCourse: Course = {
         id: 'course1',
-
         name: 'name',
         resourseUrls: [],
         testUrls: [],