diff --git a/lavamoat/build-webpack/policy-override.json b/lavamoat/build-webpack/policy-override.json
index 1c31faf0d9..4ae10cc84d 100644
--- a/lavamoat/build-webpack/policy-override.json
+++ b/lavamoat/build-webpack/policy-override.json
@@ -96,7 +96,8 @@
       "packages": {
         "to-fast-properties": true,
         "lavamoat>lavamoat-core>@babel/types>to-fast-properties": true,
-        "jest>@jest/core>jest-snapshot>@babel/types>@babel/helper-validator-identifier": true
+        "jest>@jest/core>jest-snapshot>@babel/types>@babel/helper-validator-identifier": true,
+        "jest>@jest/core>jest-snapshot>@babel/types>@babel/helper-string-parser": true
       }
     },
     "lavamoat>lavamoat-core>@babel/types": {
diff --git a/lavamoat/build-webpack/policy.json b/lavamoat/build-webpack/policy.json
index 2d233b4a4f..bd06d39e77 100644
--- a/lavamoat/build-webpack/policy.json
+++ b/lavamoat/build-webpack/policy.json
@@ -1355,6 +1355,7 @@
     },
     "jest>@jest/core>jest-snapshot>@babel/types": {
       "packages": {
+        "jest>@jest/core>jest-snapshot>@babel/types>@babel/helper-string-parser": true,
         "jest>@jest/core>jest-snapshot>@babel/types>@babel/helper-validator-identifier": true,
         "lavamoat>lavamoat-core>@babel/types>to-fast-properties": true,
         "to-fast-properties": true