diff --git a/galasa-extensions-parent/build.gradle b/galasa-extensions-parent/build.gradle
index cec24719..9635946a 100644
--- a/galasa-extensions-parent/build.gradle
+++ b/galasa-extensions-parent/build.gradle
@@ -2,17 +2,11 @@ plugins {
     id 'biz.aQute.bnd.builder' version '5.3.0' apply false
     id 'dev.galasa.githash' version '0.15.0' apply false
     id 'maven-publish'
+    id 'signing'
 }
 
 version = '0.36.0'
 
-task clean {
-    // make sure the build directory is gone
-    doFirst {
-        delete layout.buildDirectory
-    }
-}
-
 //---------------------------------------------------------------
 // We need to gather the release and packaging metadata from each
 // sub-project, to generate a release.yaml document which can act
@@ -148,6 +142,18 @@ subprojects {
     task allDeps(type: DependencyReportTask) {}
 }
 
+signing {
+    def signingKeyId = findProperty("signingKeyId")
+    def signingKey = findProperty("signingKey")
+    def signingPassword = findProperty("signingPassword")
+    useInMemoryPgpKeys(signingKeyId, signingKey, signingPassword)
+    sign publishing.publications
+}
+
+tasks.withType(Sign) {
+    onlyIf { isMainOrRelease.toBoolean() }
+}
+
 // Publish the release.yaml as a maven artifact.
 // Note: The maven co-ordinates are versioned using the version for this bundle.
 publishing {