diff --git a/.changeset/young-baboons-jam.md b/.changeset/young-baboons-jam.md
new file mode 100644
index 0000000000000000000000000000000000000000..9d7929b98923e981ab992d9a8dd0044e84cc5590
--- /dev/null
+++ b/.changeset/young-baboons-jam.md
@@ -0,0 +1,6 @@
+---
+"@llamaindex/env": patch
+"llamaindex": patch
+---
+
+fix: wrong tiktoken version caused NextJs CL template run fail
diff --git a/packages/env/package.json b/packages/env/package.json
index 5633fe10ac867719b6111f402eb355c220e666e0..4c0b00afcb460fb7f397388bf8c6ae9ef61121b1 100644
--- a/packages/env/package.json
+++ b/packages/env/package.json
@@ -82,7 +82,7 @@
     "@aws-crypto/sha256-js": "^5.2.0",
     "js-tiktoken": "^1.0.12",
     "pathe": "^1.1.2",
-    "tiktoken": "1.0.14"
+    "tiktoken": "^1.0.15"
   },
   "peerDependenciesMeta": {
     "@aws-crypto/sha256-js": {
diff --git a/packages/llamaindex/package.json b/packages/llamaindex/package.json
index 10705e68a7dee208426294fd4ced7d4cd5d7f577..6141668a4dd4c4a6a87adb57e0a1580b2880201b 100644
--- a/packages/llamaindex/package.json
+++ b/packages/llamaindex/package.json
@@ -64,7 +64,7 @@
     "portkey-ai": "0.1.16",
     "rake-modified": "^1.0.8",
     "string-strip-html": "^13.4.8",
-    "tiktoken": "1.0.14",
+    "tiktoken": "^1.0.15",
     "unpdf": "^0.11.0",
     "weaviate-client": "^3.1.4",
     "wikipedia": "^2.1.2",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index e03220185baee7dadf710af4c9fa3bd051e42e71..fe8df6f2d5c5f59e5b0c1d8f15e0cfd87f84678e 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -162,7 +162,7 @@ importers:
         version: link:../packages/llamaindex
       mongodb:
         specifier: ^6.7.0
-        version: 6.8.0(@aws-sdk/credential-providers@3.637.0)
+        version: 6.8.0(@aws-sdk/credential-providers@3.637.0(@aws-sdk/client-sso-oidc@3.637.0(@aws-sdk/client-sts@3.637.0)))
       pathe:
         specifier: ^1.1.2
         version: 1.1.2
@@ -408,8 +408,8 @@ importers:
         specifier: ^1.0.12
         version: 1.0.12
       tiktoken:
-        specifier: 1.0.14
-        version: 1.0.14
+        specifier: ^1.0.15
+        version: 1.0.16
     devDependencies:
       '@aws-crypto/sha256-js':
         specifier: ^5.2.0
@@ -573,7 +573,7 @@ importers:
         version: 2.0.0
       mongodb:
         specifier: ^6.7.0
-        version: 6.8.0(@aws-sdk/credential-providers@3.637.0)
+        version: 6.8.0(@aws-sdk/credential-providers@3.637.0(@aws-sdk/client-sso-oidc@3.637.0(@aws-sdk/client-sts@3.637.0)))
       notion-md-crawler:
         specifier: ^1.0.0
         version: 1.0.0(encoding@0.1.13)
@@ -602,8 +602,8 @@ importers:
         specifier: ^13.4.8
         version: 13.4.8
       tiktoken:
-        specifier: 1.0.14
-        version: 1.0.14
+        specifier: ^1.0.15
+        version: 1.0.16
       unpdf:
         specifier: ^0.11.0
         version: 0.11.0(encoding@0.1.13)
@@ -10247,8 +10247,8 @@ packages:
   thunky@1.1.0:
     resolution: {integrity: sha512-eHY7nBftgThBqOyHGVN+l8gF0BucP09fMo0oO/Lb0w1OF80dJv+lDVpXG60WMQvkcxAkNybKsrEIE3ZtKGmPrA==}
 
-  tiktoken@1.0.14:
-    resolution: {integrity: sha512-g5zd5r/DoH8Kw0fiYbYpVhb6WO8BHO1unXqmBBWKwoT17HwSounnDtMDFUKm2Pko8U47sjQarOe+9aUrnqmmTg==}
+  tiktoken@1.0.16:
+    resolution: {integrity: sha512-hRcORIGF2YlAgWx3nzrGJOrKSJwLoc81HpXmMQk89632XAgURc7IeV2FgQ2iXo9z/J96fCvpsHg2kWoHcbj9fg==}
 
   tiny-invariant@1.3.3:
     resolution: {integrity: sha512-+FbBPE1o9QAYvviau/qC5SE3caw21q3xkvWKBtja5vgqOWIHHJ3ioaq1VPfn/Szqctz2bU/oYeKd9/z5BL+PVg==}
@@ -17734,6 +17734,16 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
+  eslint-module-utils@2.8.2(@typescript-eslint/parser@8.3.0(eslint@8.57.0)(typescript@5.5.4))(eslint-import-resolver-node@0.3.9)(eslint@8.57.0):
+    dependencies:
+      debug: 3.2.7
+    optionalDependencies:
+      '@typescript-eslint/parser': 8.3.0(eslint@8.57.0)(typescript@5.5.4)
+      eslint: 8.57.0
+      eslint-import-resolver-node: 0.3.9
+    transitivePeerDependencies:
+      - supports-color
+
   eslint-plugin-import@2.29.1(@typescript-eslint/parser@8.3.0(eslint@8.57.0)(typescript@5.5.4))(eslint@8.57.0):
     dependencies:
       array-includes: 3.1.8
@@ -17744,7 +17754,7 @@ snapshots:
       doctrine: 2.1.0
       eslint: 8.57.0
       eslint-import-resolver-node: 0.3.9
-      eslint-module-utils: 2.8.2(@typescript-eslint/parser@7.2.0(eslint@8.57.0)(typescript@5.5.4))(eslint-import-resolver-node@0.3.9)(eslint-import-resolver-typescript@3.6.3(@typescript-eslint/parser@7.2.0(eslint@8.57.0)(typescript@5.5.4))(eslint-import-resolver-node@0.3.9)(eslint-plugin-import@2.29.1)(eslint@8.57.0))(eslint@8.57.0)
+      eslint-module-utils: 2.8.2(@typescript-eslint/parser@8.3.0(eslint@8.57.0)(typescript@5.5.4))(eslint-import-resolver-node@0.3.9)(eslint@8.57.0)
       hasown: 2.0.2
       is-core-module: 2.15.1
       is-glob: 4.0.3
@@ -20472,7 +20482,7 @@ snapshots:
     optionalDependencies:
       '@aws-sdk/credential-providers': 3.637.0(@aws-sdk/client-sso-oidc@3.637.0(@aws-sdk/client-sts@3.637.0))
 
-  mongodb@6.8.0(@aws-sdk/credential-providers@3.637.0):
+  mongodb@6.8.0(@aws-sdk/credential-providers@3.637.0(@aws-sdk/client-sso-oidc@3.637.0(@aws-sdk/client-sts@3.637.0))):
     dependencies:
       '@mongodb-js/saslprep': 1.1.7
       bson: 6.8.0
@@ -23055,7 +23065,7 @@ snapshots:
 
   thunky@1.1.0: {}
 
-  tiktoken@1.0.14: {}
+  tiktoken@1.0.16: {}
 
   tiny-invariant@1.3.3: {}