diff --git a/nextjs/packages/next/build/routes.ts b/nextjs/packages/next/build/routes.ts
index 886b8956f2..434e6fe3f1 100644
--- a/nextjs/packages/next/build/routes.ts
+++ b/nextjs/packages/next/build/routes.ts
@@ -199,6 +199,9 @@ async function findNodeModulesRoot(src: string) {
       )
     }
     root = join(nextPkgLocation, '../')
+    if (root.endsWith('@blitzjs/')) {
+      root = join(nextPkgLocation, '../../')
+    }
   }
   manifestDebug('root ' + root)
   return root
diff --git a/packages/blitz/scripts/postinstall.js b/packages/blitz/scripts/postinstall.js
index 29d0719f64..fa41b3588b 100644
--- a/packages/blitz/scripts/postinstall.js
+++ b/packages/blitz/scripts/postinstall.js
@@ -3,6 +3,7 @@ const {promisify} = require("util")
 const fs = require("fs")
 const path = require("path")
 const resolveFrom = require("resolve-from")
+const findUp = require("find-up")
 
 const copyFile = promisify(fs.copyFile)
 const mkdir = promisify(fs.mkdir)
@@ -21,6 +22,46 @@ try {
   // noop
 }
 
+// todo: we should reuse `findNodeModulesRoot` from /nextjs/packages/next/build/routes.ts
+async function findNodeModulesRoot(src) {
+  let root
+  if (process.env.NEXT_PNPM_TEST) {
+    const nextPkgLocation = path.dirname(
+      (await findUp("package.json", {
+        cwd: resolveFrom(src, "next"),
+      })) ?? "",
+    )
+    if (!nextPkgLocation) {
+      throw new Error("Internal Blitz Error: unable to find 'next' package location")
+    }
+    root = path.join(nextPkgLocation, "../")
+  } else if (isInBlitzMonorepo) {
+    root = path.join(src, "node_modules")
+  } else {
+    const blitzPkgLocation = path.dirname(
+      (await findUp("package.json", {
+        cwd: resolveFrom(src, "blitz"),
+      })) ?? "",
+    )
+    if (!blitzPkgLocation) {
+      throw new Error("Internal Blitz Error: unable to find 'blitz' package location")
+    }
+    const nextPkgLocation = path.dirname(
+      (await findUp("package.json", {
+        cwd: resolveFrom(blitzPkgLocation, "next"),
+      })) ?? "",
+    )
+    if (!nextPkgLocation) {
+      throw new Error("Internal Blitz Error: unable to find 'next' package location")
+    }
+    root = path.join(nextPkgLocation, "../")
+    if (root.endsWith("@blitzjs/")) {
+      root = path.join(nextPkgLocation, "../../")
+    }
+  }
+  return path.join(root, ".blitz")
+}
+
 const isUsingNpm =
   process.env.npm_config_user_agent && process.env.npm_config_user_agent.startsWith("npm")
 
@@ -193,7 +234,7 @@ function codegen() {
     try {
       const dotBlitzDir = isInBlitzMonorepo
         ? path.join(process.cwd(), "node_modules/.blitz")
-        : path.join(__dirname, "../../.blitz")
+        : await findNodeModulesRoot(__dirname)
 
       await makeDir(dotBlitzDir)
       const defaultIndexJsPath = path.join(dotBlitzDir, "index.js")
diff --git a/yarn.lock b/yarn.lock
index 8736b90c78..64e32fcf82 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -361,13 +361,6 @@
   dependencies:
     "@babel/types" "^7.12.13"
 
-"@babel/helper-module-imports@^7.13.12":
-  version "7.13.12"
-  resolved "https://registry.yarnpkg.com/@babel/helper-module-imports/-/helper-module-imports-7.13.12.tgz#c6a369a6f3621cb25da014078684da9196b61977"
-  integrity sha512-4cVvR2/1B693IuOvSI20xqqa/+bl7lqAMR59R4iu39R9aOX8/JoYY1sFaNvUMyMBGnHdwvJgUrzNLoUZxXypxA==
-  dependencies:
-    "@babel/types" "^7.13.12"
-
 "@babel/helper-module-imports@^7.14.5":
   version "7.14.5"
   resolved "https://registry.yarnpkg.com/@babel/helper-module-imports/-/helper-module-imports-7.14.5.tgz#6d1a44df6a38c957aa7c312da076429f11b422f3"
@@ -562,11 +555,6 @@
   resolved "https://registry.yarnpkg.com/@babel/helper-validator-identifier/-/helper-validator-identifier-7.12.11.tgz#c9a1f021917dcb5ccf0d4e453e399022981fc9ed"
   integrity sha512-np/lG3uARFybkoHokJUmf1QfEvRVCPbmQeUQpKow5cQ3xWrV9i3rUHodKDJPQfTVX61qKi+UdYk8kik84n7XOw==
 
-"@babel/helper-validator-identifier@^7.14.0":
-  version "7.14.0"
-  resolved "https://registry.yarnpkg.com/@babel/helper-validator-identifier/-/helper-validator-identifier-7.14.0.tgz#d26cad8a47c65286b15df1547319a5d0bcf27288"
-  integrity sha512-V3ts7zMSu5lfiwWDVWzRDGIN+lnCEUdaXgtVHJgLb1rGaA6jMrtB9EmE7L18foXJIE8Un/A/h6NJfGQp/e1J4A==
-
 "@babel/helper-validator-identifier@^7.14.5":
   version "7.14.5"
   resolved "https://registry.yarnpkg.com/@babel/helper-validator-identifier/-/helper-validator-identifier-7.14.5.tgz#d0f0e277c512e0c938277faa85a3968c9a44c0e8"
@@ -1683,14 +1671,6 @@
     "@babel/helper-validator-identifier" "^7.14.5"
     to-fast-properties "^2.0.0"
 
-"@babel/types@^7.13.12", "@babel/types@^7.13.17":
-  version "7.14.1"
-  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.14.1.tgz#095bd12f1c08ab63eff6e8f7745fa7c9cc15a9db"
-  integrity sha512-S13Qe85fzLs3gYRUnrpyeIrBJIMYv33qSTg1qoBwiG6nPKwUWAD9odSzWhEedpwOIzSEI6gbdQIWEMiCI42iBA==
-  dependencies:
-    "@babel/helper-validator-identifier" "^7.14.0"
-    to-fast-properties "^2.0.0"
-
 "@babel/types@^7.13.13":
   version "7.13.14"
   resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.13.14.tgz#c35a4abb15c7cd45a2746d78ab328e362cbace0d"
@@ -6795,15 +6775,6 @@ babel-plugin-macros@3.0.1:
     babel-plugin-syntax-jsx "^6.18.0"
     lodash "^4.17.11"
 
-babel-plugin-superjson-next@0.3.0:
-  version "0.3.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-superjson-next/-/babel-plugin-superjson-next-0.3.0.tgz#86620a2d134a1b0a515d903512cf7f766b394cc1"
-  integrity sha512-fTE8uWUy9OJG7PkRNP094XDdieoBsZR2iatxurbNqLyd4INXpwuuQ246iLu4+dAeQHtGhOJZxsPR8KdbNvdnlQ==
-  dependencies:
-    "@babel/helper-module-imports" "^7.13.12"
-    "@babel/types" "^7.13.17"
-    hoist-non-react-statics "^3.3.2"
-
 babel-plugin-syntax-jsx@^6.18.0:
   version "6.18.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-jsx/-/babel-plugin-syntax-jsx-6.18.0.tgz#0af32a9a6e13ca7a3fd5069e62d7b0f58d0d8946"
@@ -12729,7 +12700,7 @@ hmac-drbg@^1.0.0:
     minimalistic-assert "^1.0.0"
     minimalistic-crypto-utils "^1.0.1"
 
-hoist-non-react-statics@^3.0.0, hoist-non-react-statics@^3.3.2:
+hoist-non-react-statics@^3.0.0:
   version "3.3.2"
   resolved "https://registry.yarnpkg.com/hoist-non-react-statics/-/hoist-non-react-statics-3.3.2.tgz#ece0acaf71d62c2969c2ec59feff42a4b1a85b45"
   integrity sha512-/gGivxi8JPKWNm/W0jSmzcMPpfpPLc3dY/6GxhX2hQ9iGj3aDfklV4ET7NjKpSinLpJ5vafa9iiGIEZg10SfBw==