diff --git a/build.gradle b/build.gradle
index d5ee365..fe7a342 100644
--- a/build.gradle
+++ b/build.gradle
@@ -283,9 +283,10 @@ def isPublishingToMavenCentral() {
 }
 
 signing {
-	required { isPublishingToMavenCentral() }
-	useGpgCmd()
-    sign configurations.archives
+	if(isPublishingToMavenCentral()) {
+		useGpgCmd()
+	    sign configurations.archives
+	}
 }
 
 publishing {
diff --git a/gradle.properties b/gradle.properties
index f461305..0420d83 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,4 +1,4 @@
 org.gradle.jvmargs=-Xmx3G
 
 maxMemory = 1024m
-testThreads = 2
\ No newline at end of file
+testThreads = 4
\ No newline at end of file