diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f6c133e..82467c6 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,4 @@
-image: gradle:6.8.2-jdk15
+image: gradle:6.8.2-jdk8
 
 # Cache downloaded dependencies and plugins between builds.
 # To keep cache across branches add 'key: "$CI_JOB_NAME"'