diff --git a/compiler/fir/modularized-tests/build.gradle.kts b/compiler/fir/modularized-tests/build.gradle.kts
index 457da6501aa..1b467457a84 100644
--- a/compiler/fir/modularized-tests/build.gradle.kts
+++ b/compiler/fir/modularized-tests/build.gradle.kts
@@ -44,7 +44,7 @@ projectTest {
     systemProperties(project.properties.filterKeys { it.startsWith("fir.") })
     workingDir = rootDir
     jvmArgs!!.removeIf { it.contains("-Xmx") }
-    maxHeapSize = "3g"
+    maxHeapSize = "8g"
     dependsOn(":dist")
 }