diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f839416350294650f755de27e3ec66cae1fa9648..412ed38e0b3408f138e6ae050935d30a93ee3651 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -45,6 +45,7 @@ Build and Check with ubsan:
   except:
   - tags
 Build and Check with asan:
+  image: fedora:25
   script:
   - yum install -y gmp-devel
   - ./.bootstrap &&