diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2d3e134..439755f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
 
     strategy:
       matrix:
-        java: [8, 11]
+        java: [7, 8, 11]
 
     steps:
       - uses: actions/checkout@v2