diff --git a/prow/cluster/cluster.yaml b/prow/cluster/cluster.yaml
index e42efc3c90..00f7b63073 100644
--- a/prow/cluster/cluster.yaml
+++ b/prow/cluster/cluster.yaml
@@ -83,7 +83,7 @@ spec:
       serviceAccountName: plank
       containers:
       - name: plank
-        image: gcr.io/k8s-prow/plank:v20191219-ecbeba384
+        image: gcr.io/k8s-prow/plank:v20191219-b8438ff62
         args:
         - --kubeconfig=/etc/kubeconfig/oss-config
         - --dry-run=false
@@ -129,7 +129,7 @@ spec:
       serviceAccountName: sinker
       containers:
       - name: sinker
-        image: gcr.io/k8s-prow/sinker:v20191219-ecbeba384
+        image: gcr.io/k8s-prow/sinker:v20191219-b8438ff62
         args:
         - --kubeconfig=/etc/kubeconfig/oss-config
         - --config-path=/etc/config/config.yaml
@@ -179,7 +179,7 @@ spec:
       terminationGracePeriodSeconds: 30
       containers:
       - name: deck
-        image: gcr.io/k8s-prow/deck:v20191219-ecbeba384
+        image: gcr.io/k8s-prow/deck:v20191219-b8438ff62
         args:
         - --kubeconfig=/etc/kubeconfig/oss-config
         - --config-path=/etc/config/config.yaml
@@ -265,7 +265,7 @@ spec:
       terminationGracePeriodSeconds: 30
       containers:
       - name: horologium
-        image: gcr.io/k8s-prow/horologium:v20191219-ecbeba384
+        image: gcr.io/k8s-prow/horologium:v20191219-b8438ff62
         args:
         - --config-path=/etc/config/config.yaml
         - --job-config-path=/etc/job-config
@@ -336,7 +336,7 @@ spec:
       terminationGracePeriodSeconds: 30
       containers:
       - name: gerrit
-        image: gcr.io/k8s-prow/gerrit:v20191219-ecbeba384
+        image: gcr.io/k8s-prow/gerrit:v20191219-b8438ff62
         args:
         - --config-path=/etc/config/config.yaml
         - --job-config-path=/etc/job-config
@@ -389,7 +389,7 @@ spec:
       terminationGracePeriodSeconds: 30
       containers:
       - name: crier
-        image: gcr.io/k8s-prow/crier:v20191219-ecbeba384
+        image: gcr.io/k8s-prow/crier:v20191219-b8438ff62
         args:
         - --gerrit-workers=1
         - --github-workers=1
@@ -447,7 +447,7 @@ spec:
       terminationGracePeriodSeconds: 180
       containers:
       - name: hook
-        image: gcr.io/k8s-prow/hook:v20191219-ecbeba384
+        image: gcr.io/k8s-prow/hook:v20191219-b8438ff62
         imagePullPolicy: Always
         args:
         - --config-path=/etc/config/config.yaml
@@ -825,7 +825,7 @@ spec:
       serviceAccountName: tide
       containers:
       - name: tide
-        image: gcr.io/k8s-prow/tide:v20191219-ecbeba384
+        image: gcr.io/k8s-prow/tide:v20191219-b8438ff62
         args:
         - --config-path=/etc/config/config.yaml
         - --job-config-path=/etc/job-config
diff --git a/prow/cluster/grandmatriarch_default.yaml b/prow/cluster/grandmatriarch_default.yaml
index 093f1cf7a9..385ef294f0 100644
--- a/prow/cluster/grandmatriarch_default.yaml
+++ b/prow/cluster/grandmatriarch_default.yaml
@@ -67,7 +67,7 @@ spec:
       serviceAccountName: grandmatriarch
       containers:
       - name: bakery
-        image: gcr.io/k8s-prow/grandmatriarch:v20191219-ecbeba384
+        image: gcr.io/k8s-prow/grandmatriarch:v20191219-b8438ff62
         args:
         - /etc/robot/service-account.json
         - http-cookiefile
diff --git a/prow/cluster/grandmatriarch_test-pods.yaml b/prow/cluster/grandmatriarch_test-pods.yaml
index 1c33dfe6ad..401592035a 100644
--- a/prow/cluster/grandmatriarch_test-pods.yaml
+++ b/prow/cluster/grandmatriarch_test-pods.yaml
@@ -72,7 +72,7 @@ spec:
       serviceAccountName: grandmatriarch
       containers:
       - name: bakery
-        image: gcr.io/k8s-prow/grandmatriarch:v20191219-ecbeba384
+        image: gcr.io/k8s-prow/grandmatriarch:v20191219-b8438ff62
         args:
         - /etc/robot/service-account.json
         - http-cookiefile
diff --git a/prow/config.yaml b/prow/config.yaml
index cec3ad9daf..3eeca31b5f 100644
--- a/prow/config.yaml
+++ b/prow/config.yaml
@@ -45,10 +45,10 @@ plank:
       timeout: 7200000000000 # 2h
       grace_period: 15000000000 # 15s
       utility_images:
-        clonerefs: "gcr.io/k8s-prow/clonerefs:v20191219-ecbeba384"
-        initupload: "gcr.io/k8s-prow/initupload:v20191219-ecbeba384"
-        entrypoint: "gcr.io/k8s-prow/entrypoint:v20191219-ecbeba384"
-        sidecar: "gcr.io/k8s-prow/sidecar:v20191219-ecbeba384"
+        clonerefs: "gcr.io/k8s-prow/clonerefs:v20191219-b8438ff62"
+        initupload: "gcr.io/k8s-prow/initupload:v20191219-b8438ff62"
+        entrypoint: "gcr.io/k8s-prow/entrypoint:v20191219-b8438ff62"
+        sidecar: "gcr.io/k8s-prow/sidecar:v20191219-b8438ff62"
       gcs_configuration:
         bucket: "oss-prow"
         path_strategy: "explicit"
diff --git a/prow/prowjobs/GoogleCloudPlatform/oss-test-infra/gcp-oss-test-infra-config.yaml b/prow/prowjobs/GoogleCloudPlatform/oss-test-infra/gcp-oss-test-infra-config.yaml
index 2fd484025a..c7cc197520 100644
--- a/prow/prowjobs/GoogleCloudPlatform/oss-test-infra/gcp-oss-test-infra-config.yaml
+++ b/prow/prowjobs/GoogleCloudPlatform/oss-test-infra/gcp-oss-test-infra-config.yaml
@@ -7,7 +7,7 @@ presubmits:
     always_run: true
     spec:
       containers:
-        - image: gcr.io/k8s-prow/checkconfig:v20191219-ecbeba384
+        - image: gcr.io/k8s-prow/checkconfig:v20191219-b8438ff62
           imagePullPolicy: Always
           command:
             - /checkconfig
@@ -138,7 +138,7 @@ periodics:
     testgrid-dashboards: googleoss-test-infra
   spec:
     containers:
-    - image: gcr.io/k8s-prow/autobump:v20191219-ecbeba384
+    - image: gcr.io/k8s-prow/autobump:v20191219-b8438ff62
       command:
       - /autobump.sh
       args: