diff --git a/packages/fx-core/tests/v4/scenarios/createApiPluginFromExistingApi.test.ts b/packages/fx-core/tests/v4/scenarios/createApiPluginFromExistingApi.test.ts
index 9e96f4637e..6017fd66fb 100644
--- a/packages/fx-core/tests/v4/scenarios/createApiPluginFromExistingApi.test.ts
+++ b/packages/fx-core/tests/v4/scenarios/createApiPluginFromExistingApi.test.ts
@@ -104,7 +104,7 @@ describe("SCN-DA-CREATE-API-PLUGIN-FROM-EXISTING-API (v4, T3 InMemoryRuntime)",
     const manifest = readJsonObject(files, "appPackage/manifest.json");
     const copilotAgents = recordProperty(manifest, "copilotAgents");
     const agents = recordArrayProperty(copilotAgents, "declarativeAgents");
-    assert.strictEqual(manifest.manifestVersion, "1.28");
+    assert.strictEqual(manifest.manifestVersion, "1.29");
     assert.strictEqual(manifest.id, "${{TEAMS_APP_ID}}");
     assert.deepStrictEqual(agents[0], {
       id: "declarativeAgent",
diff --git a/packages/fx-core/tests/v4/scenarios/createApiPluginFromScratch.test.ts b/packages/fx-core/tests/v4/scenarios/createApiPluginFromScratch.test.ts
index 784462c746..ee3151e47d 100644
--- a/packages/fx-core/tests/v4/scenarios/createApiPluginFromScratch.test.ts
+++ b/packages/fx-core/tests/v4/scenarios/createApiPluginFromScratch.test.ts
@@ -129,7 +129,7 @@ describe("SCN-DA-CREATE-API-PLUGIN-FROM-SCRATCH (v4, T3 InMemoryRuntime)", () =>
     const name = recordProperty(manifest, "name");
     const copilotAgents = recordProperty(manifest, "copilotAgents");
     const agents = recordArrayProperty(copilotAgents, "declarativeAgents");
-    assert.strictEqual(manifest.manifestVersion, "1.28");
+    assert.strictEqual(manifest.manifestVersion, "1.29");
     // the env-var refs survive render verbatim (provision resolves them later).
     assert.strictEqual(manifest.id, "${{TEAMS_APP_ID}}");
     assert.strictEqual(name.short, "MyAgent${{APP_NAME_SUFFIX}}");
diff --git a/packages/fx-core/tests/v4/scenarios/createApiPluginFromScratchBearer.test.ts b/packages/fx-core/tests/v4/scenarios/createApiPluginFromScratchBearer.test.ts
index 9b8185a96a..7959df76cb 100644
--- a/packages/fx-core/tests/v4/scenarios/createApiPluginFromScratchBearer.test.ts
+++ b/packages/fx-core/tests/v4/scenarios/createApiPluginFromScratchBearer.test.ts
@@ -132,7 +132,7 @@ describe("SCN-DA-CREATE-API-PLUGIN-FROM-SCRATCH-BEARER (v4, T3 InMemoryRuntime)"
     const name = recordProperty(manifest, "name");
     const copilotAgents = recordProperty(manifest, "copilotAgents");
     const agents = recordArrayProperty(copilotAgents, "declarativeAgents");
-    assert.strictEqual(manifest.manifestVersion, "1.28");
+    assert.strictEqual(manifest.manifestVersion, "1.29");
     assert.strictEqual(manifest.id, "${{TEAMS_APP_ID}}");
     assert.strictEqual(name.short, "MyAgent${{APP_NAME_SUFFIX}}");
     assert.lengthOf(agents, 1);
diff --git a/packages/fx-core/tests/v4/scenarios/createApiPluginFromScratchOauth.test.ts b/packages/fx-core/tests/v4/scenarios/createApiPluginFromScratchOauth.test.ts
index 4cb687e5c5..be634f5912 100644
--- a/packages/fx-core/tests/v4/scenarios/createApiPluginFromScratchOauth.test.ts
+++ b/packages/fx-core/tests/v4/scenarios/createApiPluginFromScratchOauth.test.ts
@@ -174,7 +174,7 @@ describe("SCN-DA-CREATE-API-PLUGIN-FROM-SCRATCH-OAUTH (v4, T3 InMemoryRuntime)",
     const name = recordProperty(manifest, "name");
     const copilotAgents = recordProperty(manifest, "copilotAgents");
     const agents = recordArrayProperty(copilotAgents, "declarativeAgents");
-    assert.strictEqual(manifest.manifestVersion, "1.28");
+    assert.strictEqual(manifest.manifestVersion, "1.29");
     assert.strictEqual(manifest.id, "${{TEAMS_APP_ID}}");
     assert.strictEqual(name.short, "MyAgent${{APP_NAME_SUFFIX}}");
     assert.lengthOf(agents, 1);
diff --git a/packages/fx-core/tests/v4/scenarios/createNoAction.test.ts b/packages/fx-core/tests/v4/scenarios/createNoAction.test.ts
index 523dcf8557..0a2aa2d6bc 100644
--- a/packages/fx-core/tests/v4/scenarios/createNoAction.test.ts
+++ b/packages/fx-core/tests/v4/scenarios/createNoAction.test.ts
@@ -89,7 +89,7 @@ describe("SCN-DA-CREATE-NO-ACTION (v4, T3 InMemoryRuntime)", () => {
     const name = recordProperty(manifest, "name");
     const copilotAgents = recordProperty(manifest, "copilotAgents");
     const agents = copilotAgents.declarativeAgents;
-    assert.strictEqual(manifest.manifestVersion, "1.28");
+    assert.strictEqual(manifest.manifestVersion, "1.29");
     // the env-var refs survive render verbatim (provision resolves them later).
     assert.strictEqual(manifest.id, "${{TEAMS_APP_ID}}");
     assert.strictEqual(name.short, "MyAgent${{APP_NAME_SUFFIX}}");
diff --git a/templates/v4/create/da/api-plugin-from-scratch-bearer/content/typescript/package.json.tpl b/templates/v4/create/da/api-plugin-from-scratch-bearer/content/typescript/package.json.tpl
index 16fabe2c55..4979b28fd3 100644
--- a/templates/v4/create/da/api-plugin-from-scratch-bearer/content/typescript/package.json.tpl
+++ b/templates/v4/create/da/api-plugin-from-scratch-bearer/content/typescript/package.json.tpl
@@ -22,7 +22,7 @@
         "env-cmd": "^10.1.0",
         "ts-node": "^10.4.0",
         "@types/node": "^22.0.0",
-        "typescript": "^4.1.6"
+        "typescript": "~5.8.3"
     },
     "main": "dist/src/functions/*.js"
 }
diff --git a/templates/v4/create/da/api-plugin-from-scratch-oauth/content/typescript/package.json.tpl b/templates/v4/create/da/api-plugin-from-scratch-oauth/content/typescript/package.json.tpl
index d1b01d4451..494ae085f6 100644
--- a/templates/v4/create/da/api-plugin-from-scratch-oauth/content/typescript/package.json.tpl
+++ b/templates/v4/create/da/api-plugin-from-scratch-oauth/content/typescript/package.json.tpl
@@ -25,7 +25,7 @@
         "@types/node": "^22.0.0",
         "env-cmd": "^10.1.0",
         "rimraf": "^5.0.7",
-        "typescript": "^4.1.6"
+        "typescript": "~5.8.3"
     },
     "main": "dist/src/functions/*.js"
 }
diff --git a/templates/v4/create/da/api-plugin-from-scratch/content/typescript/package.json.tpl b/templates/v4/create/da/api-plugin-from-scratch/content/typescript/package.json.tpl
index d5f87e0985..e7709cbae6 100644
--- a/templates/v4/create/da/api-plugin-from-scratch/content/typescript/package.json.tpl
+++ b/templates/v4/create/da/api-plugin-from-scratch/content/typescript/package.json.tpl
@@ -20,7 +20,7 @@
     "devDependencies": {
         "env-cmd": "^10.1.0",
         "@types/node": "^22.0.0",
-        "typescript": "^4.1.6"
+        "typescript": "~5.8.3"
     },
     "main": "dist/src/functions/*.js"
 }
diff --git a/templates/vsc/ts/declarative-agent-with-action-from-scratch-bearer/package.json.tpl b/templates/vsc/ts/declarative-agent-with-action-from-scratch-bearer/package.json.tpl
index 16fabe2c55..4979b28fd3 100644
--- a/templates/vsc/ts/declarative-agent-with-action-from-scratch-bearer/package.json.tpl
+++ b/templates/vsc/ts/declarative-agent-with-action-from-scratch-bearer/package.json.tpl
@@ -22,7 +22,7 @@
         "env-cmd": "^10.1.0",
         "ts-node": "^10.4.0",
         "@types/node": "^22.0.0",
-        "typescript": "^4.1.6"
+        "typescript": "~5.8.3"
     },
     "main": "dist/src/functions/*.js"
 }
diff --git a/templates/vsc/ts/declarative-agent-with-action-from-scratch-oauth/package.json.tpl b/templates/vsc/ts/declarative-agent-with-action-from-scratch-oauth/package.json.tpl
index d1b01d4451..494ae085f6 100644
--- a/templates/vsc/ts/declarative-agent-with-action-from-scratch-oauth/package.json.tpl
+++ b/templates/vsc/ts/declarative-agent-with-action-from-scratch-oauth/package.json.tpl
@@ -25,7 +25,7 @@
         "@types/node": "^22.0.0",
         "env-cmd": "^10.1.0",
         "rimraf": "^5.0.7",
-        "typescript": "^4.1.6"
+        "typescript": "~5.8.3"
     },
     "main": "dist/src/functions/*.js"
 }
diff --git a/templates/vsc/ts/declarative-agent-with-action-from-scratch/package.json.tpl b/templates/vsc/ts/declarative-agent-with-action-from-scratch/package.json.tpl
index d5f87e0985..e7709cbae6 100644
--- a/templates/vsc/ts/declarative-agent-with-action-from-scratch/package.json.tpl
+++ b/templates/vsc/ts/declarative-agent-with-action-from-scratch/package.json.tpl
@@ -20,7 +20,7 @@
     "devDependencies": {
         "env-cmd": "^10.1.0",
         "@types/node": "^22.0.0",
-        "typescript": "^4.1.6"
+        "typescript": "~5.8.3"
     },
     "main": "dist/src/functions/*.js"
 }