diff --git a/build-logic/src/main/kotlin/org/jetbrains/conventions/base-java.gradle.kts b/build-logic/src/main/kotlin/org/jetbrains/conventions/base-java.gradle.kts
index cff7eb3ebe..c5b90e812f 100644
--- a/build-logic/src/main/kotlin/org/jetbrains/conventions/base-java.gradle.kts
+++ b/build-logic/src/main/kotlin/org/jetbrains/conventions/base-java.gradle.kts
@@ -22,6 +22,12 @@ java {
 tasks.withType<Test>().configureEach {
     useJUnitPlatform()
 
+    maxParallelForks = if (System.getenv("GITHUB_ACTIONS") != null) {
+        Runtime.getRuntime().availableProcessors()
+    } else {
+        (Runtime.getRuntime().availableProcessors() / 2).takeIf { it > 0 } ?: 1
+    }
+
     javaLauncher.set(javaToolchains.launcherFor {
         languageVersion.set(dokkaBuild.testJavaLauncherVersion)
     })