diff --git a/package.json b/package.json
index 525bbf9..953beb9 100644
--- a/package.json
+++ b/package.json
@@ -32,9 +32,9 @@
     "standard": "^12.0.1",
     "tslint": "^6.0.0",
     "tslint-config-standard": "^8.0.1",
-    "jest": "^26.0.0",
-    "babel-jest": "^26.0.0",
-    "ts-jest": "^24.0.0",
+    "jest": "^27.0.0",
+    "babel-jest": "^27.0.0",
+    "ts-jest": "^27.0.0",
     "yaml-jest": "^1.0.5",
     "iter-tools": "^6.1.4",
     "static-type-assert": "^3.0.1",