diff --git a/package-lock.json b/package-lock.json
index bdf3788..02d6b7b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,12 +15,12 @@
             },
             "devDependencies": {
                 "@istanbuljs/nyc-config-typescript": "^1.0.2",
-                "@toebeann/nanomsg": "^4.2.0",
                 "@tsconfig/node16": "^1.0.3",
                 "@types/chai": "^4.3.1",
                 "@types/chai-as-promised": "^7.1.5",
                 "@types/chai-spies": "^1.0.3",
                 "@types/mocha": "^9.1.1",
+                "@types/nanomsg": "^4.2.0",
                 "@types/node": "^18.6.3",
                 "@types/uuid": "^8.3.4",
                 "@typescript-eslint/eslint-plugin": "^5.30.6",
@@ -718,16 +718,6 @@
                 "node": ">= 8"
             }
         },
-        "node_modules/@toebeann/nanomsg": {
-            "version": "4.2.0",
-            "resolved": "https://npm.pkg.github.com/download/@toebeann/nanomsg/4.2.0/205bd2855953b02d93f569a6ca86be7320969f447487660da5cd147eda2e75e5",
-            "integrity": "sha512-kbmIAbFGoiXG2hKKf20rKfsEtAxpyxG+XKdaQyRYHxbTfV+YWyi1EVi9MaWOUEYtOlsUSRV7pXdro0AbEYOm+Q==",
-            "dev": true,
-            "license": "MIT",
-            "dependencies": {
-                "@types/node": "*"
-            }
-        },
         "node_modules/@tsconfig/node10": {
             "version": "1.0.9",
             "resolved": "https://registry.npmjs.org/@tsconfig/node10/-/node10-1.0.9.tgz",
@@ -788,6 +778,15 @@
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             "dev": true
         },
+        "node_modules/@types/nanomsg": {
+            "version": "4.2.0",
+            "resolved": "https://registry.npmjs.org/@types/nanomsg/-/nanomsg-4.2.0.tgz",
+            "integrity": "sha512-i30YdFEEQhJ9ePRD2NZYtKcPJfBrcm9Am99EoBOZE+aw/Lq7x4lRuTojUTBi6e67yXCEVZwQftk50bkzMjhgvg==",
+            "dev": true,
+            "dependencies": {
+                "@types/node": "*"
+            }
+        },
         "node_modules/@types/node": {
             "version": "18.6.3",
             "resolved": "https://registry.npmjs.org/@types/node/-/node-18.6.3.tgz",
@@ -4524,15 +4523,6 @@
                 "fastq": "^1.6.0"
             }
         },
-        "@toebeann/nanomsg": {
-            "version": "4.2.0",
-            "resolved": "https://npm.pkg.github.com/download/@toebeann/nanomsg/4.2.0/205bd2855953b02d93f569a6ca86be7320969f447487660da5cd147eda2e75e5",
-            "integrity": "sha512-kbmIAbFGoiXG2hKKf20rKfsEtAxpyxG+XKdaQyRYHxbTfV+YWyi1EVi9MaWOUEYtOlsUSRV7pXdro0AbEYOm+Q==",
-            "dev": true,
-            "requires": {
-                "@types/node": "*"
-            }
-        },
         "@tsconfig/node10": {
             "version": "1.0.9",
             "resolved": "https://registry.npmjs.org/@tsconfig/node10/-/node10-1.0.9.tgz",
@@ -4593,6 +4583,15 @@
             "integrity": "sha512-Z61JK7DKDtdKTWwLeElSEBcWGRLY8g95ic5FoQqI9CMx0ns/Ghep3B4DfcEimiKMvtamNVULVNKEsiwV3aQmXw==",
             "dev": true
         },
+        "@types/nanomsg": {
+            "version": "4.2.0",
+            "resolved": "https://registry.npmjs.org/@types/nanomsg/-/nanomsg-4.2.0.tgz",
+            "integrity": "sha512-i30YdFEEQhJ9ePRD2NZYtKcPJfBrcm9Am99EoBOZE+aw/Lq7x4lRuTojUTBi6e67yXCEVZwQftk50bkzMjhgvg==",
+            "dev": true,
+            "requires": {
+                "@types/node": "*"
+            }
+        },
         "@types/node": {
             "version": "18.6.3",
             "resolved": "https://registry.npmjs.org/@types/node/-/node-18.6.3.tgz",
diff --git a/package.json b/package.json
index f3dda23..7db6888 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@toebeann/procedure.js",
-    "version": "0.2.0",
+    "version": "0.2.1",
     "description": "A simple RPC framework, built on top of nanomsg and msgpack.",
     "main": "./dist/index",
     "types": "./types/index.d.ts",
@@ -23,12 +23,12 @@
     },
     "devDependencies": {
         "@istanbuljs/nyc-config-typescript": "^1.0.2",
-        "@toebeann/nanomsg": "^4.2.0",
         "@tsconfig/node16": "^1.0.3",
         "@types/chai": "^4.3.1",
         "@types/chai-as-promised": "^7.1.5",
         "@types/chai-spies": "^1.0.3",
         "@types/mocha": "^9.1.1",
+        "@types/nanomsg": "^4.2.0",
         "@types/node": "^18.6.3",
         "@types/uuid": "^8.3.4",
         "@typescript-eslint/eslint-plugin": "^5.30.6",