diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 445bada92e..aef4e258f8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,7 +10,7 @@ jobs:
       matrix:
         target-platform: [ "JVM", "JS" ]
     env:
-      JAVA_OPTS: -Xmx4G
+      JAVA_OPTS: "-Xmx5G -XX:+UseG1GC"
     steps:
     - name: Checkout
       uses: actions/checkout@v2