diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 19ee2810ed8a4e488f3190dd1df681382d24e592..b20fdf06819d0eb281737226025fbe0831126dba 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -204,7 +204,7 @@ sign_windows:
 deploy_manual_stable:
   stage: deploy
   rules:
-    - if: '$CI_PROJECT_NAMESPACE == "Dynare" && $CI_COMMIT_TAG == /^6\.[0-9]+$/'
+    - if: '$CI_PROJECT_NAMESPACE == "Dynare" && $CI_COMMIT_TAG =~ /^6\.[0-9]+$/'
       when: on_success
     - when: never
   tags: