diff --git a/.gitignore b/.gitignore
index 71b2cfe..6ad0ae1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,3 @@
 .idea
 .vscode
 vendor/
-go.sum
diff --git a/Dockerfile b/Dockerfile
index db14b84..de7f7e8 100755
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,4 +12,4 @@ WORKDIR /exercises-go
 
 COPY . .
 
-# RUN go mod vendor
+RUN go mod vendor