diff --git a/components/routers/case_study/credit_card_default.ipynb b/components/routers/case_study/credit_card_default.ipynb
index 2f4d8e4a29..1d356c1a3a 100644
--- a/components/routers/case_study/credit_card_default.ipynb
+++ b/components/routers/case_study/credit_card_default.ipynb
@@ -820,7 +820,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "!kubectl rollout status deploy/poc-ts-ts-2-8c76509 "
+    "!kubectl rollout status deploy/poc-ts-ts-2-06708a4"
    ]
   },
   {
diff --git a/components/routers/case_study/models/rf_model/RFModel.py b/components/routers/case_study/models/rf_model/RFModel.py
index 5c993330ca..bb6de9fe6a 100644
--- a/components/routers/case_study/models/rf_model/RFModel.py
+++ b/components/routers/case_study/models/rf_model/RFModel.py
@@ -40,7 +40,8 @@ def send_feedback(self, features, feature_names, reward, truth):
         self.value = self.success / self.tries
 
         logger.debug(self.cm)
-        logger.debug(self.tries, self.success, self.value)
+        logger.debug("Tries: %s, successes: %s, values: %s", self.tries,
+                     self.success, self.value)
 
     def metrics(self):
         tp = {"type": "GAUGE", "key": "true_pos_total",
diff --git a/components/routers/case_study/models/xgb_model/XGBModel.py b/components/routers/case_study/models/xgb_model/XGBModel.py
index efa0e82d40..9eaf4c312d 100644
--- a/components/routers/case_study/models/xgb_model/XGBModel.py
+++ b/components/routers/case_study/models/xgb_model/XGBModel.py
@@ -40,7 +40,8 @@ def send_feedback(self, features, feature_names, reward, truth):
         self.value = self.success / self.tries
 
         logger.debug(self.cm)
-        logger.debug(self.tries, self.success, self.value)
+        logger.debug("Tries: %s, successes: %s, values: %s", self.tries,
+                     self.success, self.value)
 
     def metrics(self):
         tp = {"type": "GAUGE", "key": "true_pos_total",