diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index d126bd060e5c82638e8513a0cd6ea6bc5bca4c2c..1b7bc500081c59fe7a110021c344aa2399eb9099 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -68,7 +68,7 @@ test_maxima:
   parallel:
     matrix:
       - TEST_VERSION: "2023052400"
-        QSTACK_VERSION: "f896a9d6a04c2f619f02a17e39f045d0036d1dc2"
+        QSTACK_VERSION: "master"
         MOODLE_BRANCH: "MOODLE_39_STABLE"
       - TEST_VERSION: "2023010400"
         QSTACK_VERSION: "v4.4.2"