diff --git a/alfa-client/apps/alfa-e2e/Jenkinsfile b/alfa-client/apps/alfa-e2e/Jenkinsfile
index 563c75362ecc2d5a4316ee6de3597d471f9ecb78..3697c71a83a807795b9bad97660ab4189db84099 100644
--- a/alfa-client/apps/alfa-e2e/Jenkinsfile
+++ b/alfa-client/apps/alfa-e2e/Jenkinsfile
@@ -381,7 +381,7 @@ String getRootPomVersion() {
 }
 
 Void initEnvVorgangManagerDefaultVersions() {
-    values = getApplicationValues('vorgang-manager')
+    def values = getApplicationValues('vorgang-manager')
 
     env.VORGANG_MANAGER_IMAGE_TAG = getImageTag(values)
     env.VORGANG_MANAGER_HELM_CHART_VERSION = getHelmChartVersion(values)
@@ -389,7 +389,7 @@ Void initEnvVorgangManagerDefaultVersions() {
 }
 
 Void initEnvUserManagerDefaultVersions() {
-    values = getApplicationValues('user-manager')
+    def values = getApplicationValues('user-manager')
 
     env.USER_MANAGER_IMAGE_TAG = getImageTag(values)
     env.USER_MANAGER_HELM_CHART_VERSION = getHelmChartVersion(values)
@@ -735,7 +735,7 @@ String getKeycloakUuid(realm, userName) {
 }
 
 String getKeycloakAccessToken(String realm) {
-    userManagerApiUserCredentials = getUserManagerApiUserCredentials(realm)
+    def userManagerApiUserCredentials = getUserManagerApiUserCredentials(realm)
 
 	def token = readJSON text: sh (script: "set +x && curl -d \"client_id=admin-cli\" -d \"username=${userManagerApiUserCredentials.user}\" -d \"password=${userManagerApiUserCredentials.password}\" -d \"grant_type=password\" https://$SSO_URL/realms/$realm/protocol/openid-connect/token", returnStdout: true)
 
@@ -743,7 +743,7 @@ String getKeycloakAccessToken(String realm) {
 }
 
 Map getUserManagerApiUserCredentials(String namespace) {
-    userManagerApiUserCredentials = readJSON ( text: sh (script: "kubectl get secret usermanagerapiuser-credentials -n ${namespace} -o jsonpath={.data}", returnStdout: true))
+    def userManagerApiUserCredentials = readJSON ( text: sh (script: "kubectl get secret usermanagerapiuser-credentials -n ${namespace} -o jsonpath={.data}", returnStdout: true))
 
     return [
         "user": decodeString(userManagerApiUserCredentials.name),
diff --git a/alfa-client/apps/alfa-e2e/Jenkinsfile-static b/alfa-client/apps/alfa-e2e/Jenkinsfile-static
index d22140c0a04a3cd6086a293988ca6518485363e6..c430b502d88df0299fe473b8327651d2220fd14f 100644
--- a/alfa-client/apps/alfa-e2e/Jenkinsfile-static
+++ b/alfa-client/apps/alfa-e2e/Jenkinsfile-static
@@ -444,7 +444,7 @@ String getKeycloakUuid(realm, userName) {
 }
 
 String getKeycloakAccessToken(String realm) {
-    userManagerApiUserCredentials = getUserManagerApiUserCredentials(realm)
+    def userManagerApiUserCredentials = getUserManagerApiUserCredentials(realm)
 
 	def token = readJSON text: sh (script: "set +x && curl -d \"client_id=admin-cli\" -d \"username=${userManagerApiUserCredentials.user}\" -d \"password=${userManagerApiUserCredentials.password}\" -d \"grant_type=password\" https://$SSO_URL/realms/$realm/protocol/openid-connect/token", returnStdout: true)
 
@@ -452,7 +452,7 @@ String getKeycloakAccessToken(String realm) {
 }
 
 Map getUserManagerApiUserCredentials(String namespace) {
-    userManagerApiUserCredentials = readJSON ( text: sh (script: "kubectl get secret usermanagerapiuser-credentials -n ${namespace} -o jsonpath={.data}", returnStdout: true))
+    def userManagerApiUserCredentials = readJSON ( text: sh (script: "kubectl get secret usermanagerapiuser-credentials -n ${namespace} -o jsonpath={.data}", returnStdout: true))
 
     return [
         "user": decodeString(userManagerApiUserCredentials.name),