diff --git a/package.json b/package.json
index 7359300a..87c08dfe 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
   "dependencies": {},
   "devDependencies": {
     "@nestjs/common": "7.3.2",
-    "@nestjs/core": "7.3.2",
+    "@nestjs/core": "9.0.5",
     "@nestjs/platform-express": "7.3.2",
     "@nestjs/platform-fastify": "7.3.2",
     "@nestjs/testing": "7.3.2",
diff --git a/samples/auth/package.json b/samples/auth/package.json
index a234f0f9..f8d965a3 100644
--- a/samples/auth/package.json
+++ b/samples/auth/package.json
@@ -24,7 +24,7 @@
     "@jashkasoft/nestjs-json-rpc": "7.6.0",
     "@nestjs/common": "7.3.2",
     "@nestjs/config": "0.5.0",
-    "@nestjs/core": "7.3.2",
+    "@nestjs/core": "9.0.5",
     "@nestjs/jwt": "7.1.0",
     "@nestjs/passport": "7.1.0",
     "@nestjs/platform-express": "7.3.2",
diff --git a/samples/express-engine/package.json b/samples/express-engine/package.json
index 0b2e7ae8..3583c847 100644
--- a/samples/express-engine/package.json
+++ b/samples/express-engine/package.json
@@ -23,7 +23,7 @@
   "dependencies": {
     "@jashkasoft/nestjs-json-rpc": "7.6.0",
     "@nestjs/common": "7.3.2",
-    "@nestjs/core": "7.3.2",
+    "@nestjs/core": "9.0.5",
     "@nestjs/platform-express": "7.3.2",
     "reflect-metadata": "0.1.13",
     "rimraf": "3.0.2",
diff --git a/samples/fastify-engine/package.json b/samples/fastify-engine/package.json
index bbceec04..e1fd9fd3 100644
--- a/samples/fastify-engine/package.json
+++ b/samples/fastify-engine/package.json
@@ -23,7 +23,7 @@
   "dependencies": {
     "@jashkasoft/nestjs-json-rpc": "7.6.0",
     "@nestjs/common": "7.3.2",
-    "@nestjs/core": "7.3.2",
+    "@nestjs/core": "9.0.5",
     "@nestjs/platform-express": "7.3.2",
     "@nestjs/platform-fastify": "7.3.2",
     "reflect-metadata": "0.1.13",
diff --git a/samples/logging/package.json b/samples/logging/package.json
index 76f0d97b..e00e2e96 100644
--- a/samples/logging/package.json
+++ b/samples/logging/package.json
@@ -23,7 +23,7 @@
   "dependencies": {
     "@jashkasoft/nestjs-json-rpc": "7.6.0",
     "@nestjs/common": "7.3.2",
-    "@nestjs/core": "7.3.2",
+    "@nestjs/core": "9.0.5",
     "@nestjs/platform-express": "7.3.2",
     "reflect-metadata": "0.1.13",
     "rimraf": "3.0.2",
diff --git a/samples/multiple-handlers-in-class/package.json b/samples/multiple-handlers-in-class/package.json
index 0b2e7ae8..3583c847 100644
--- a/samples/multiple-handlers-in-class/package.json
+++ b/samples/multiple-handlers-in-class/package.json
@@ -23,7 +23,7 @@
   "dependencies": {
     "@jashkasoft/nestjs-json-rpc": "7.6.0",
     "@nestjs/common": "7.3.2",
-    "@nestjs/core": "7.3.2",
+    "@nestjs/core": "9.0.5",
     "@nestjs/platform-express": "7.3.2",
     "reflect-metadata": "0.1.13",
     "rimraf": "3.0.2",
diff --git a/samples/request-scoped/package.json b/samples/request-scoped/package.json
index 0bdd5e1e..3f1716a1 100644
--- a/samples/request-scoped/package.json
+++ b/samples/request-scoped/package.json
@@ -23,7 +23,7 @@
   "dependencies": {
     "@jashkasoft/nestjs-json-rpc": "7.6.0",
     "@nestjs/common": "7.3.2",
-    "@nestjs/core": "7.3.2",
+    "@nestjs/core": "9.0.5",
     "@nestjs/platform-express": "7.3.2",
     "reflect-metadata": "0.1.13",
     "rimraf": "3.0.2",