diff --git a/tinfi/.gitlab-ci.yml b/tinfi/.gitlab-ci.yml
index 22e0d86140f4011c3157391e85024b4297b0a60c..b469ef656cbd95470087e0f0ae354c96f200324d 100644
--- a/tinfi/.gitlab-ci.yml
+++ b/tinfi/.gitlab-ci.yml
@@ -1,4 +1,4 @@
-image: maven:3-jdk-8
+image: maven:3-jdk-9
 
 before_script:
   - export MAVEN_OPTS="-Xms256m -Xmx512m -Dmaven.repo.local=.m2/repository"