diff --git a/pkgs/common-updater/scripts/update-source-version b/pkgs/common-updater/scripts/update-source-version
index 2a46fdf11137..a4eb31550f91 100755
--- a/pkgs/common-updater/scripts/update-source-version
+++ b/pkgs/common-updater/scripts/update-source-version
@@ -229,10 +229,11 @@ if [[ -n "$newUrl" ]]; then
         die "Couldn't evaluate source url from '$attr.$sourceKey'!"
     fi
 
-    # Escape regex metacharacter that are allowed in store path names
-    oldUrlEscaped=$(echo "$oldUrl" | sed -re 's|[${}.+?]|\\&|g')
+    # Escape regex metacharacter that may appear in URLs
+    oldUrlEscaped=$(echo "$oldUrl" | sed -e 's|[*.^$[\|]|\\&|g')
+    newUrlEscaped=$(echo "$newUrl" | sed -e 's|[&\|]|\\&|g')
 
-    sed -i.cmp "$nixFile" -re "s|\"$oldUrlEscaped\"|\"$newUrl\"|"
+    sed -i.cmp "$nixFile" -e "s|\"$oldUrlEscaped\"|\"$newUrlEscaped\"|"
     if cmp -s "$nixFile" "$nixFile.cmp"; then
         die "Failed to replace source URL '$oldUrl' to '$newUrl' in '$attr'!"
     fi