diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 1b82083d5..086538ccd 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -18,7 +18,7 @@ variables:
     DEBIAN_VERSION: testing-slim
     DEBIAN_EXEC: 'bash .gitlab-ci/debian-install.sh'
 
-    DEBIAN_TAG: "2020-01-06"
+    DEBIAN_TAG: "2020-04-21"
     IMAGE_LOCAL: "$CI_REGISTRY_IMAGE/debian/$DEBIAN_VERSION:$DEBIAN_TAG"
 
 include: