diff --git a/backend/Dockerfile b/backend/Dockerfile
index 8302856c5bd..8ba646ee339 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -66,7 +66,8 @@ COPY --from=compiler /samples/ /samples/
 RUN apt-get update && apt-get install -y ca-certificates
 
 # Pin sample doc links to the commit that built the backend image
-RUN sed -E "s#/(blob|tree)/master/#/\1/${COMMIT_SHA}/#g" -i /config/sample_config.json
+RUN sed -E "s#/(blob|tree)/master/#/\1/${COMMIT_SHA}/#g" -i /config/sample_config.json && \
+    sed -E "s/%252Fmaster/%252F${COMMIT_SHA}/#g" -i /config/sample_config.json
 
 # Expose apiserver port
 EXPOSE 8888
diff --git a/backend/src/apiserver/config/sample_config.json b/backend/src/apiserver/config/sample_config.json
index dd394cfb678..e66f4be9c58 100644
--- a/backend/src/apiserver/config/sample_config.json
+++ b/backend/src/apiserver/config/sample_config.json
@@ -6,7 +6,7 @@
   },
   {
     "name": "[Demo] Unified DSL - Taxi Tip Prediction Model Trainer",
-    "description": "[GCP Permission requirements](https://github.com/kubeflow/pipelines/blob/master/samples/contrib/parameterized_tfx_oss#permission). [source code](https://console.cloud.google.com/mlengine/notebooks/deploy-notebook?q=download_url%3Dhttps%253A%252F%252Fraw.githubusercontent.com%252Fkubeflow%252Fpipelines%252F0.1.40%252Fsamples%252Fcore%252Fparameterized_tfx_oss%252Ftaxi_pipeline_notebook.ipynb). Example pipeline that does classification with model analysis based on a public tax cab BigQuery dataset.",
+    "description": "[GCP Permission requirements](https://github.com/kubeflow/pipelines/blob/master/samples/core/parameterized_tfx_oss#permission). [source code](https://console.cloud.google.com/mlengine/notebooks/deploy-notebook?q=download_url%3Dhttps%253A%252F%252Fraw.githubusercontent.com%252Fkubeflow%252Fpipelines%252Fmaster%252Fsamples%252Fcore%252Fparameterized_tfx_oss%252Ftaxi_pipeline_notebook.ipynb). Example pipeline that does classification with model analysis based on a public tax cab dataset.",
     "file": "/samples/core/parameterized_tfx_oss/parameterized_tfx_oss.py.yaml"
   },
   {