diff --git a/Jenkinsfile b/Jenkinsfile
index 73239f1..4e1c94c 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -117,7 +117,8 @@
 		[
 			run: {
 				echo "Building packages";
-				sh "mkdir -p ${env.BUILD_DIR} && echo 'testpkg' > ${env.BUILD_DIR}/\${LAZY_LABEL}.pkg"
+				def currentVersion = readFile(encoding: 'UTF-8', file: 'version.txt')
+				sh "mkdir -p ${env.BUILD_DIR} && echo 'testpkg-${currentVersione}' > ${env.BUILD_DIR}/\${LAZY_LABEL}.pkg"
 			},
 			in: [ 'ubuntu-16', 'centos-7', ],
 			on: 'docker',
@@ -136,7 +137,7 @@
 	// Ask version if release flag and set and we are in the branch to fork release from
 	input = [
 		message: 'Version string',
-		parameters: [string(defaultValue: '', description: 'Version string to be use for the next release', name: 'VERSION')]
+		parameters: [string(defaultValue: '', description: 'Version string to release', name: 'VERSION')]
 	]
 	tasks = [
 		pre: {
@@ -144,9 +145,11 @@
 			gitAuth(env.GIT_CRED, {
 				// Define next version based on optional input
 				// TODO: impelement/import a generic helper for semantic versionning
-				def nextVersion = 'new'
+				def nextVersion = null
 				if (env.lazyInput) {
 					nextVersion = env.lazyInput
+				} else {
+					nextVersion = bumpVersion('build', currentVersion)
 				}
 				// Merge master into release branch
 				gitMerge(workingBranch, releaseBranch)