diff --git a/promenade/kubeclient.py b/promenade/kubeclient.py
index 18ef93b0..75cf5c9c 100644
--- a/promenade/kubeclient.py
+++ b/promenade/kubeclient.py
@@ -115,10 +115,9 @@ def _get_update_labels(existing_labels, input_labels):
     # no existing labels found
     if not existing_labels:
         # filter delete label request since there is no labels set on a node
-        update_labels.update({
-            k: v
-            for k, v in input_labels.items() if v is not None
-        })
+        update_labels.update(
+            {k: v
+             for k, v in input_labels.items() if v is not None})
         return update_labels
 
     # new labels or overriding labels
diff --git a/zuul.d/jobs.yaml b/zuul.d/jobs.yaml
index 7b0f04d8..40d09c58 100644
--- a/zuul.d/jobs.yaml
+++ b/zuul.d/jobs.yaml
@@ -60,7 +60,7 @@
     timeout: 900
     nodeset: airship-promenade-single-node-focal
     vars:
-      HTK_COMMIT: a7cd689280cdbc0acd04a7a1b745941260e8700b
+      HTK_COMMIT: 51c70e48dff173281a77d374d87af2c49caa6348
 
 - job:
     name: airship-promenade-chart-build-gate-latest-htk
@@ -209,4 +209,4 @@
           4vpUaRiIYNDFy1wDZJ57o+RPqnLmMVzAtz/JFJKeO8yEQUqypWJhkAiHSbVoM32pY/3yA
           Q/Xg0AakbxBtOwmtwpevxHHfFOQ+SQT3frrLtqFw0DehEAJUkb40VI11iGsSKCOk446t1
           neMY02eksimEUmURZa3oneGj1otqAt8ptX+VC4lTqkuICbapCNNYeBzs2sTS2Radvsdwv
-          OWHP9f9E+iUoFABFPLwvPdNAU0ulX61uxinxKkcTk1hcekn1lZuIvEBRy7JJ7M=
\ No newline at end of file
+          OWHP9f9E+iUoFABFPLwvPdNAU0ulX61uxinxKkcTk1hcekn1lZuIvEBRy7JJ7M=