diff --git a/Dockerfile b/Dockerfile
index 15f086ed..687e72e7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -55,7 +55,7 @@ RUN apk update && \
     python3 -m venv $VIRTUAL_ENV
 
 COPY requirements.lock.txt requirements.txt
-ARG PIP_EXTRA_INDEX_URL="https://artifactory.algol60.net/artifactory/csm-python-modules/simple https://artifactory.algol60.net/artifactory/csm-python-modules/unstable"
+ARG PIP_EXTRA_INDEX_URL="https://artifactory.algol60.net/artifactory/csm-python-modules/simple"
 RUN --mount=type=secret,id=netrc,target=/root/.netrc \
     pip3 install --no-cache-dir -U pip && \
     pip3 install -r requirements.txt