diff --git a/build.gradle b/build.gradle
index fdb03d0f20..d0f8bd42af 100644
--- a/build.gradle
+++ b/build.gradle
@@ -222,7 +222,7 @@ subprojects {
 
         // set heap size for the test JVM(s)
         minHeapSize = "128m"
-        maxHeapSize = "768m"
+        maxHeapSize = "1512m"
 
         // Specifying the local via system properties did not work, so we set them this way
         jvmArgs << [