diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8dd9b858e..f419b6ae1 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -2,7 +2,7 @@ variables:
   MAVEN_OPTS: "-Dmaven.repo.local=$CI_PROJECT_DIR/.m2/repository"
   MAVEN_CLI_OPTS: "--batch-mode --errors --fail-at-end --show-version -DinstallAtEnd=true -DdeployAtEnd=true"
 
-image: maven:3-openjdk-14
+image: maven:3-openjdk-15
 
 cache:
   paths:
@@ -14,4 +14,4 @@ stages:
 verify:
   stage: verify
   script:
-    - 'mvn $MAVEN_CLI_OPTS verify'
\ No newline at end of file
+    - 'mvn $MAVEN_CLI_OPTS verify'
diff --git a/jitpack.yml b/jitpack.yml
index e1dfa8381..f1416ce0f 100644
--- a/jitpack.yml
+++ b/jitpack.yml
@@ -1,4 +1,4 @@
 before_install:
   - wget https://github.com/sormuras/bach/raw/master/install-jdk.sh
-  - source install-jdk.sh --feature 14
-  - jshell --version
\ No newline at end of file
+  - source install-jdk.sh --feature 15
+  - jshell --version