diff --git a/examples/extension_service/Dockerfile b/examples/extension_service/Dockerfile
index dd375dc0f1730573d74a8645f905fd6ae0ac4e87..9bb9a152b3343d3a48b5f07b511b528e2739955e 100644
--- a/examples/extension_service/Dockerfile
+++ b/examples/extension_service/Dockerfile
@@ -11,7 +11,7 @@ ARG PIP_EXTRA_INDEX_URL=${PIP_EXTRA_INDEX_URL}
 ENV PIP_EXTRA_INDEX_URL=$PIP_EXTRA_INDEX_URL
 
 COPY . /home/${USER}/app
-RUN pip install perxis==0.0.15
+RUN pip install perxis==0.0.16
 
 ENV PYTHONPATH="/home/perx/app"
 ENV PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION=python
diff --git a/examples/extension_service/constants/collections.py b/examples/extension_service/constants/collections.py
index 23e438fef10ca9b0f8e52eda3c6e6c5d4f8023de..ef5a4a02a74a90fcafd394ec580003fc0d6c5069 100644
--- a/examples/extension_service/constants/collections.py
+++ b/examples/extension_service/constants/collections.py
@@ -1,4 +1,3 @@
 schemes_mapping = {
     "test_collection": "Тестовая коллекция",
-    "another_test_collection": "Ещё Тестовая коллекция",
 }