diff --git a/packages/grunt-stryker/package.json b/packages/grunt-stryker/package.json
index 2e7d5056cb..c3c0f9443e 100644
--- a/packages/grunt-stryker/package.json
+++ b/packages/grunt-stryker/package.json
@@ -37,7 +37,7 @@
     "@types/node": "^14.0.1"
   },
   "peerDependencies": {
-    "@stryker-mutator/core": "4.0.0-beta.4",
+    "@stryker-mutator/core": "~4.1.0",
     "grunt": ">=0.4.5"
   }
 }
diff --git a/packages/jasmine-runner/package.json b/packages/jasmine-runner/package.json
index fceff93c1c..2a6b15ce37 100644
--- a/packages/jasmine-runner/package.json
+++ b/packages/jasmine-runner/package.json
@@ -36,7 +36,7 @@
   },
   "homepage": "https://github.com/stryker-mutator/stryker/tree/master/packages/jasmine-runner#readme",
   "peerDependencies": {
-    "@stryker-mutator/core": "~4.0.0",
+    "@stryker-mutator/core": "~4.1.0",
     "jasmine": ">=2"
   },
   "devDependencies": {
diff --git a/packages/jest-runner/package.json b/packages/jest-runner/package.json
index 89ef180fe6..7e2d1cf4e8 100644
--- a/packages/jest-runner/package.json
+++ b/packages/jest-runner/package.json
@@ -51,7 +51,7 @@
     "react-scripts-ts": "~3.1.0"
   },
   "peerDependencies": {
-    "@stryker-mutator/core": "~4.0.0",
+    "@stryker-mutator/core": "~4.1.0",
     "jest": ">= 22.0.0"
   },
   "dependencies": {
diff --git a/packages/karma-runner/package.json b/packages/karma-runner/package.json
index 886129bfed..4d3a0f645b 100644
--- a/packages/karma-runner/package.json
+++ b/packages/karma-runner/package.json
@@ -44,7 +44,7 @@
     "karma-mocha": "~2.0.0"
   },
   "peerDependencies": {
-    "@stryker-mutator/core": "~4.0.0"
+    "@stryker-mutator/core": "~4.1.0"
   },
   "dependencies": {
     "@stryker-mutator/api": "4.1.1",
diff --git a/packages/mocha-runner/package.json b/packages/mocha-runner/package.json
index 6f7f3a2f3f..1f753217c0 100644
--- a/packages/mocha-runner/package.json
+++ b/packages/mocha-runner/package.json
@@ -48,7 +48,7 @@
     "@types/node": "^14.0.1"
   },
   "peerDependencies": {
-    "@stryker-mutator/core": "~4.0.0",
+    "@stryker-mutator/core": "~4.1.0",
     "mocha": ">= 2.3.3 < 9"
   }
 }
diff --git a/packages/typescript-checker/package.json b/packages/typescript-checker/package.json
index 6c9a1fbe09..bbfc741194 100644
--- a/packages/typescript-checker/package.json
+++ b/packages/typescript-checker/package.json
@@ -42,7 +42,7 @@
     "@types/semver": "~7.3.3"
   },
   "peerDependencies": {
-    "@stryker-mutator/core": "~4.0.0",
+    "@stryker-mutator/core": "~4.1.0",
     "typescript": ">=3.6"
   }
 }