diff --git a/scripts/go-test-coverage.sh b/scripts/go-test-coverage.sh
index 54538069..f2ac8be6 100755
--- a/scripts/go-test-coverage.sh
+++ b/scripts/go-test-coverage.sh
@@ -6,9 +6,11 @@ BACKEND_DIR="$ROOT_DIR/backend"
 COVERAGE_FILE="$BACKEND_DIR/coverage.pre-commit.out"
 MIN_COVERAGE="${CPM_MIN_COVERAGE:-40}"
 
+trap 'rm -f "$COVERAGE_FILE"' EXIT
+
 cd "$BACKEND_DIR"
 
-go test -coverprofile="$COVERAGE_FILE" ./internal/...
+go test -mod=readonly -coverprofile="$COVERAGE_FILE" ./internal/...
 
 go tool cover -func="$COVERAGE_FILE" | tail -n 1
 TOTAL_LINE=$(go tool cover -func="$COVERAGE_FILE" | grep total)
@@ -30,6 +32,4 @@ if total < minimum:
     sys.exit(1)
 PY
 
-rm -f "$COVERAGE_FILE"
-
 echo "Coverage requirement met"