diff --git a/.github/actions/java-test/action.yaml b/.github/actions/java-test/action.yaml
index 64d4862276..4c9b4de37f 100644
--- a/.github/actions/java-test/action.yaml
+++ b/.github/actions/java-test/action.yaml
@@ -101,7 +101,7 @@ runs:
         SPARK_LOCAL_HOSTNAME: "localhost"
         SPARK_LOCAL_IP: "127.0.0.1"
       run: |
-        MAVEN_OPTS="-Xmx4G -Xms2G -XX:+UnlockDiagnosticVMOptions -XX:+ShowMessageBoxOnError -XX:+HeapDumpOnOutOfMemoryError -XX:ErrorFile=./hs_err_pid%p.log" SPARK_HOME=`pwd` ./mvnw -B -Prelease clean install ${{ inputs.maven_opts }}
+        MAVEN_OPTS="-Xmx6G -Xms2G -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+ShowMessageBoxOnError -XX:+HeapDumpOnOutOfMemoryError -XX:ErrorFile=./hs_err_pid%p.log" SPARK_HOME=`pwd` ./mvnw -B -Prelease clean install ${{ inputs.maven_opts }}
     - name: Run specified tests
       shell: bash
       if: ${{ inputs.suites != '' }}
@@ -112,7 +112,7 @@ runs:
       run: |
         MAVEN_SUITES="$(echo "${{ inputs.suites }}" | paste -sd, -)"
         echo "Running with MAVEN_SUITES=$MAVEN_SUITES"
-        MAVEN_OPTS="-Xmx4G -Xms2G -DwildcardSuites=$MAVEN_SUITES -XX:+UnlockDiagnosticVMOptions -XX:+ShowMessageBoxOnError -XX:+HeapDumpOnOutOfMemoryError -XX:ErrorFile=./hs_err_pid%p.log" SPARK_HOME=`pwd` ./mvnw -B -Prelease clean install ${{ inputs.maven_opts }}
+        MAVEN_OPTS="-Xmx6G -Xms2G -XX:+UseG1GC -DwildcardSuites=$MAVEN_SUITES -XX:+UnlockDiagnosticVMOptions -XX:+ShowMessageBoxOnError -XX:+HeapDumpOnOutOfMemoryError -XX:ErrorFile=./hs_err_pid%p.log" SPARK_HOME=`pwd` ./mvnw -B -Prelease clean install ${{ inputs.maven_opts }}
     - name: Upload crash logs
       if: failure()
       uses: actions/upload-artifact@v4
diff --git a/pom.xml b/pom.xml
index ab42aa773e..453ece9fd9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -115,7 +115,7 @@ under the License.
       --add-opens=java.base/sun.util.calendar=ALL-UNNAMED
       -Djdk.reflect.useDirectMethodHandle=false
     </extraJavaTestArgs>
-    <argLine>-ea -Xmx4g -Xss4m ${extraJavaTestArgs}</argLine>
+    <argLine>-ea -Xmx4g -Xss2m ${extraJavaTestArgs}</argLine>
     <shims.majorVerSrc>spark-3.x</shims.majorVerSrc>
     <shims.minorVerSrc>spark-3.5</shims.minorVerSrc>
   </properties>