diff --git a/.abstruse.yml b/.abstruse.yml
index c4395fd..ab131a7 100644
--- a/.abstruse.yml
+++ b/.abstruse.yml
@@ -1,4 +1,4 @@
-image: openjdk
+image: abstruse
 
 matrix:
   - env: SCRIPT=shadowJar
@@ -7,6 +7,7 @@ before_install:
   - apt update
 
 install:
+  - apt install -y openjdk-8-jdk
   - apt install -y gradle
 
 script: