diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 19820cdb5e..15e0c1f93c 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -15,7 +15,7 @@ jobs:
   Build-k-NN:
     strategy:
       matrix:
-        java: [11, 14]
+        java: [8, 11, 14]
 
     name: Build and Test k-NN Plugin
     runs-on: ubuntu-latest