diff --git a/.changeset/quiet-horses-grin.md b/.changeset/quiet-horses-grin.md
new file mode 100644
index 00000000000..e58146c1070
--- /dev/null
+++ b/.changeset/quiet-horses-grin.md
@@ -0,0 +1,6 @@
+---
+'@graphql-codegen/cli': patch
+---
+
+Fix exception `loader.loaderId is not a function` caused by conflict with an internal dependency of Codegen.
+
diff --git a/packages/graphql-codegen-cli/package.json b/packages/graphql-codegen-cli/package.json
index 1a66102beaf..0bca2d2b148 100644
--- a/packages/graphql-codegen-cli/package.json
+++ b/packages/graphql-codegen-cli/package.json
@@ -49,7 +49,7 @@
     "@graphql-tools/graphql-file-loader": "^6.2.7",
     "@graphql-tools/json-file-loader": "^6.2.6",
     "@graphql-tools/load": "^6.2.8",
-    "@graphql-tools/prisma-loader": "^6.3.0",
+    "@graphql-tools/prisma-loader": "6.3.0",
     "@graphql-tools/url-loader": "^6.10.1",
     "@graphql-tools/utils": "^7.9.1",
     "ansi-escapes": "^4.3.1",
diff --git a/yarn.lock b/yarn.lock
index 67c0215eb74..e0ee8b2f553 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2122,7 +2122,7 @@
   dependencies:
     tslib "~2.0.1"
 
-"@graphql-tools/prisma-loader@^6.3.0":
+"@graphql-tools/prisma-loader@6.3.0":
   version "6.3.0"
   resolved "https://registry.yarnpkg.com/@graphql-tools/prisma-loader/-/prisma-loader-6.3.0.tgz#c907e17751ff2b26e7c2bc75d0913ebf03f970da"
   integrity sha512-9V3W/kzsFBmUQqOsd96V4a4k7Didz66yh/IK89B1/rrvy9rYj+ULjEqR73x9BYZ+ww9FV8yP8LasWAJwWaqqJQ==
@@ -3186,7 +3186,12 @@
   dependencies:
     "@types/node" "*"
 
-"@types/node@*", "@types/node@14.17.6", "@types/node@^14.14.33":
+"@types/node@*", "@types/node@^15.0.1":
+  version "15.6.0"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-15.6.0.tgz#f0ddca5a61e52627c9dcb771a6039d44694597bc"
+  integrity sha512-gCYSfQpy+LYhOFTKAeE8BkyGqaxmlFxe+n4DKM6DR0wzw/HISUE/hAmkC/KT8Sw5PCJblqg062b3z9gucv3k0A==
+
+"@types/node@14.17.6", "@types/node@^14.14.33":
   version "14.17.6"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-14.17.6.tgz#cc61c8361c89e70c468cda464d1fa3dd7e5ebd62"
   integrity sha512-iBxsxU7eswQDGhlr3AiamBxOssaYxbM+NKXVil8jg9yFXvrfEFbDumLD/2dMTB+zYyg7w+Xjt8yuxfdbUHAtcQ==
@@ -3201,11 +3206,6 @@
   resolved "https://registry.npmjs.org/@types/node/-/node-12.12.55.tgz#0aa266441cb9e1fd3e415a8f619cb7d776667cdd"
   integrity sha512-Vd6xQUVvPCTm7Nx1N7XHcpX6t047ltm7TgcsOr4gFHjeYgwZevo+V7I1lfzHnj5BT5frztZ42+RTG4MwYw63dw==
 
-"@types/node@^15.0.1":
-  version "15.6.0"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-15.6.0.tgz#f0ddca5a61e52627c9dcb771a6039d44694597bc"
-  integrity sha512-gCYSfQpy+LYhOFTKAeE8BkyGqaxmlFxe+n4DKM6DR0wzw/HISUE/hAmkC/KT8Sw5PCJblqg062b3z9gucv3k0A==
-
 "@types/normalize-package-data@^2.4.0":
   version "2.4.0"
   resolved "https://registry.npmjs.org/@types/normalize-package-data/-/normalize-package-data-2.4.0.tgz#e486d0d97396d79beedd0a6e33f4534ff6b4973e"
@@ -13363,12 +13363,12 @@ rxjs@^6.3.3, rxjs@^6.4.0, rxjs@^6.5.1, rxjs@^6.6.0, rxjs@^6.6.3, rxjs@^6.6.7:
   dependencies:
     tslib "^1.9.0"
 
-safe-buffer@5.1.2, safe-buffer@>=5.1.0, safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
+safe-buffer@5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.2"
   resolved "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
   integrity sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==
 
-safe-buffer@^5.2.0, safe-buffer@~5.2.0:
+safe-buffer@>=5.1.0, safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@^5.2.0, safe-buffer@~5.2.0:
   version "5.2.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
   integrity sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==