diff --git a/package.json b/package.json
index 7359300a..3a2de6a0 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "reflect-metadata": "0.1.13",
     "rxjs": "6.6.0",
     "supertest": "4.0.2",
-    "ts-jest": "26.1.3",
+    "ts-jest": "26.4.0",
     "ts-node": "8.10.2",
     "tsconfig-paths": "3.9.0",
     "tslint": "6.1.2",
diff --git a/samples/auth/package.json b/samples/auth/package.json
index a234f0f9..4e1fc36c 100644
--- a/samples/auth/package.json
+++ b/samples/auth/package.json
@@ -50,7 +50,7 @@
     "jest": "26.1.0",
     "prettier": "2.0.5",
     "supertest": "4.0.2",
-    "ts-jest": "26.1.3",
+    "ts-jest": "26.4.0",
     "ts-loader": "8.0.1",
     "ts-node": "8.10.2",
     "tsconfig-paths": "3.9.0",
diff --git a/samples/express-engine/package.json b/samples/express-engine/package.json
index 0b2e7ae8..595c0d1c 100644
--- a/samples/express-engine/package.json
+++ b/samples/express-engine/package.json
@@ -45,7 +45,7 @@
     "jest": "26.1.0",
     "prettier": "2.0.5",
     "supertest": "4.0.2",
-    "ts-jest": "26.1.3",
+    "ts-jest": "26.4.0",
     "ts-loader": "8.0.1",
     "ts-node": "8.10.2",
     "tsconfig-paths": "3.9.0",
diff --git a/samples/fastify-engine/package.json b/samples/fastify-engine/package.json
index bbceec04..97220dc3 100644
--- a/samples/fastify-engine/package.json
+++ b/samples/fastify-engine/package.json
@@ -46,7 +46,7 @@
     "jest": "26.1.0",
     "prettier": "2.0.5",
     "supertest": "4.0.2",
-    "ts-jest": "26.1.3",
+    "ts-jest": "26.4.0",
     "ts-loader": "8.0.1",
     "ts-node": "8.10.2",
     "tsconfig-paths": "3.9.0",
diff --git a/samples/logging/package.json b/samples/logging/package.json
index 76f0d97b..65da9939 100644
--- a/samples/logging/package.json
+++ b/samples/logging/package.json
@@ -45,7 +45,7 @@
     "jest": "25.5.4",
     "prettier": "2.0.4",
     "supertest": "4.0.2",
-    "ts-jest": "26.1.3",
+    "ts-jest": "26.4.0",
     "ts-loader": "8.0.1",
     "ts-node": "8.8.2",
     "tsconfig-paths": "3.9.0",
diff --git a/samples/multiple-handlers-in-class/package.json b/samples/multiple-handlers-in-class/package.json
index 0b2e7ae8..595c0d1c 100644
--- a/samples/multiple-handlers-in-class/package.json
+++ b/samples/multiple-handlers-in-class/package.json
@@ -45,7 +45,7 @@
     "jest": "26.1.0",
     "prettier": "2.0.5",
     "supertest": "4.0.2",
-    "ts-jest": "26.1.3",
+    "ts-jest": "26.4.0",
     "ts-loader": "8.0.1",
     "ts-node": "8.10.2",
     "tsconfig-paths": "3.9.0",
diff --git a/samples/request-scoped/package.json b/samples/request-scoped/package.json
index 0bdd5e1e..84e82fb8 100644
--- a/samples/request-scoped/package.json
+++ b/samples/request-scoped/package.json
@@ -45,7 +45,7 @@
     "jest": "26.1.0",
     "prettier": "2.0.5",
     "supertest": "4.0.2",
-    "ts-jest": "26.1.3",
+    "ts-jest": "26.4.0",
     "ts-loader": "8.0.1",
     "ts-node": "8.10.2",
     "tsconfig-paths": "3.9.0",