diff --git a/src/com/sap/piper/cm/ChangeManagement.groovy b/src/com/sap/piper/cm/ChangeManagement.groovy
index 0bba3d7c9..c86f6b7f3 100644
--- a/src/com/sap/piper/cm/ChangeManagement.groovy
+++ b/src/com/sap/piper/cm/ChangeManagement.groovy
@@ -355,6 +355,7 @@ public class ChangeManagement implements Serializable {
     }
 
     void releaseTransportRequestCTS(
+        Map docker,
         String transportRequestId,
         String endpoint,
         String credentialsId,
@@ -368,7 +369,7 @@ public class ChangeManagement implements Serializable {
 
         int rc = executeWithCredentials(
             BackendType.CTS,
-            [:],
+            docker,
             endpoint,
             credentialsId,
             cmd,
diff --git a/test/groovy/TransportRequestReleaseTest.groovy b/test/groovy/TransportRequestReleaseTest.groovy
index 2eb808fb4..1ea96ba61 100644
--- a/test/groovy/TransportRequestReleaseTest.groovy
+++ b/test/groovy/TransportRequestReleaseTest.groovy
@@ -127,6 +127,7 @@ public class TransportRequestReleaseTest extends BasePiperTest {
         ChangeManagement cm = new ChangeManagement(nullScript) {
 
             void releaseTransportRequestCTS(
+                                         Map docker,
                                          String transportRequestId,
                                          String endpoint,
                                          String credentialsId,
@@ -230,12 +231,14 @@ public class TransportRequestReleaseTest extends BasePiperTest {
 
         ChangeManagement cm = new ChangeManagement(nullScript) {
             void releaseTransportRequestCTS(
+                Map docker,
                 String transportRequestId,
                 String endpoint,
                 String credentialsId,
                 String clientOpts = '') {
 
                 receivedParameters = [
+                    docker: docker,
                     transportRequestId: transportRequestId,
                     endpoint: endpoint,
                     credentialsId: credentialsId,
@@ -250,6 +253,12 @@ public class TransportRequestReleaseTest extends BasePiperTest {
             cmUtils: cm)
 
         assert receivedParameters == [
+                    docker: [
+                        image:'ppiper/cm-client',
+                        options:[],
+                        envVars:[:],
+                        pullImage:true,
+                    ],
                     transportRequestId: '002',
                     endpoint: 'https://example.org/cts',
                     credentialsId: 'CM',
diff --git a/test/groovy/com/sap/piper/cm/ChangeManagementTest.groovy b/test/groovy/com/sap/piper/cm/ChangeManagementTest.groovy
index 1a1fc8c73..e10ca57e9 100644
--- a/test/groovy/com/sap/piper/cm/ChangeManagementTest.groovy
+++ b/test/groovy/com/sap/piper/cm/ChangeManagementTest.groovy
@@ -424,6 +424,10 @@ public void testGetCommandLineWithCMClientOpts() {
         script.setReturnValue(JenkinsShellCallRule.Type.REGEX, '-t CTS export-transport.*-tID 002', 0)
 
         new ChangeManagement(nullScript).releaseTransportRequestCTS(
+            [
+                image: 'ppiper/cm-client',
+                pullImage: true,
+            ],
             '002',
             'https://example.org',
             'me',
@@ -431,6 +435,9 @@ public void testGetCommandLineWithCMClientOpts() {
 
         // no assert required here, since the regex registered above to the script rule is an implicit check for
         // the command line.
+
+        assert dockerExecuteRule.getDockerParams().dockerImage == 'ppiper/cm-client'
+        assert dockerExecuteRule.getDockerParams().dockerPullImage == true
     }
 
     @Test
diff --git a/vars/transportRequestRelease.groovy b/vars/transportRequestRelease.groovy
index b2acf002b..c7da5876a 100644
--- a/vars/transportRequestRelease.groovy
+++ b/vars/transportRequestRelease.groovy
@@ -111,6 +111,7 @@ void call(parameters = [:]) {
                     case BackendType.CTS:
 
                         cm.releaseTransportRequestCTS(
+                            configuration.changeManagement.cts.docker,
                             configuration.transportRequestId,
                             configuration.changeManagement.endpoint,
                             configuration.changeManagement.credentialsId,