diff --git a/utils/tests/gitlab-ci.yml b/utils/tests/gitlab-ci.yml
index 553b1d1bc..89f4dd3fb 100644
--- a/utils/tests/gitlab-ci.yml
+++ b/utils/tests/gitlab-ci.yml
@@ -52,7 +52,7 @@ stages:
     key: "ccache-$CI_JOB_NAME"
     paths:
       - $CCACHE_BASEDIR_VALUE/
-  timeout: 9h
+  timeout: 12h
   variables:
     CCACHE_BASEDIR_VALUE: ns-3-ccache-storage