diff --git a/Dockerfile b/Dockerfile
index c2996141b..bca77ef48 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -59,7 +59,7 @@ ENV GIT_BUILD_HASH=$GIT_BUILD_HASH
 RUN apt-get update && \
     apt-get install -y --no-install-recommends curl ca-certificates gnupg git runit && \
     curl https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add - && \
-    echo "deb http://apt.postgresql.org/pub/repos/apt buster-pgdg main" > /etc/apt/sources.list.d/pgdg.list && \
+    echo "deb http://apt.postgresql.org/pub/repos/apt bullseye-pgdg main" > /etc/apt/sources.list.d/pgdg.list && \
     apt-get update && \
     apt-get install -y --no-install-recommends libpq-dev postgresql-client build-essential libxmlsec1-dev pkg-config libmaxminddb0 && \
     pip install -r /requirements.txt --no-cache-dir && \