diff --git a/test/js/third_party/piscina/package.json b/test/js/third_party/piscina/package.json
index c9b896d20e..208fd572a7 100644
--- a/test/js/third_party/piscina/package.json
+++ b/test/js/third_party/piscina/package.json
@@ -1,6 +1,6 @@
 {
   "name": "piscina-test",
   "dependencies": {
-    "piscina": "^5.0.0"
+    "piscina": "5.0.0"
   }
 }