diff --git a/client/package.json b/client/package.json
index 3943b8e248..d3cdb99580 100644
--- a/client/package.json
+++ b/client/package.json
@@ -138,7 +138,7 @@
     "@types/loadable__component": "5.13.4",
     "@types/lodash-es": "4.17.4",
     "@types/prismjs": "1.16.6",
-    "@types/psl": "^1.1.0",
+    "@types/psl": "1.1.0",
     "@types/reach__router": "1.3.9",
     "@types/react-dom": "17.0.9",
     "@types/react-helmet": "6.1.2",