diff --git a/package.json b/package.json
index b596922..c7c060e 100644
--- a/package.json
+++ b/package.json
@@ -73,7 +73,7 @@
     "react-dom": "^16.9.0",
     "react-test-renderer": "^16.9.0",
     "regenerator-runtime": "^0.13.3",
-    "rollup": "^1.19.4",
+    "rollup": "1.19.4",
     "rollup-plugin-babel": "^4.3.3",
     "rollup-plugin-commonjs": "^10.0.2",
     "rollup-plugin-json": "^4.0.0",