diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 57a7c0ec9..c06d37bd6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,8 +1,8 @@
 name: CI
 
 env:
-  JDK_JAVA_OPTIONS: -XX:+PrintCommandLineFlags -Xmx4G -Xss4M -XX:+UseG1GC # JDK_JAVA_OPTIONS is _the_ env. variable to use for modern Java
-  JVM_OPTS: -XX:+PrintCommandLineFlags -Xmx4G -Xss4M -XX:+UseG1GC # for Java 8 only (sadly, it is not modern enough for JDK_JAVA_OPTIONS)
+  JDK_JAVA_OPTIONS: -XX:+PrintCommandLineFlags -Xmx5G -Xss4M -XX:+UseG1GC # JDK_JAVA_OPTIONS is _the_ env. variable to use for modern Java
+  JVM_OPTS: -XX:+PrintCommandLineFlags -Xmx5G -Xss4M -XX:+UseG1GC # for Java 8 only (sadly, it is not modern enough for JDK_JAVA_OPTIONS)
   NODE_OPTIONS: --max_old_space_size=6144
 
 on:
@@ -48,6 +48,10 @@ jobs:
         java-version: ${{ matrix.java }}
     - name: Cache scala dependencies
       uses: coursier/cache-action@v6
+    - name: Set Swap Space
+      uses: pierotofy/set-swap-space@master
+      with:
+        swap-size-gb: 10
     - name: Run tests
       run: sbt ++${{ matrix.scala }}! test
 
diff --git a/.sbtopts b/.sbtopts
index 9c8acb010..8287e195f 100644
--- a/.sbtopts
+++ b/.sbtopts
@@ -1,4 +1,4 @@
 -J-XX:+PrintCommandLineFlags
--J-Xmx4G
+-J-Xmx5G
 -J-Xss4M
 -J-XX:+UseG1GC
\ No newline at end of file