diff --git a/.prettierrc.js b/.prettierrc.cjs
similarity index 100%
rename from .prettierrc.js
rename to .prettierrc.cjs
diff --git a/scripts/release/pre-release.sh b/scripts/release/pre-release.sh
index 6b47ef180ff..19319fb6105 100755
--- a/scripts/release/pre-release.sh
+++ b/scripts/release/pre-release.sh
@@ -12,3 +12,6 @@ do
         jq ".$i = .matrix_lib_$i" package.json > package.json.new && mv package.json.new package.json && yarn prettier --write package.json
     fi
 done
+
+# Ensure that "type": "module" is present
+jq '.type = "module"' package.json > package.json.new && mv package.json.new package.json && yarn prettier --write package.json