diff --git a/Jenkinsfile b/Jenkinsfile
index d438f32..45270c3 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -10,10 +10,6 @@ node("docker && linux && amd64") {
 		["8.5", "jre8"],
 		["9", "jre8"],
 	]
-	def jreVersions = [
-		"jre7",
-		"jre8",
-	]
 
 	stage("Checkout") {
 		checkout scm
@@ -22,7 +18,7 @@ node("docker && linux && amd64") {
 	stage("Build") {
 		def imageVersion
 
-		versions.forEach { version ->
+		versions.each { version ->
 			def tomcatVersion = version[0]
 			def jreVersion = version[1]
 
@@ -45,7 +41,7 @@ node("docker && linux && amd64") {
 	}
 
 	stage("Push") {
-		images.forEach { imageData ->
+		images.each { imageData ->
 			def image = imageData[0]
 			def imageTag = imageData[1]
 			image.push(imageTag)