diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8f6a3311..803a35cd 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -40,7 +40,7 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu-latest, macos-latest ]
-        scala: [ '2.12', '2.13' ]
+        scala: [ '2.12' ]
     runs-on: ${{ matrix.os }}
     defaults:
       run: