diff --git a/Dockerfile-dev b/Dockerfile-dev
index dba6d16..4664707 100644
--- a/Dockerfile-dev
+++ b/Dockerfile-dev
@@ -1,4 +1,4 @@
-FROM python:3.6-alpine
+FROM python:3.11.0rc1-alpine
 
 # Install dependencies
 COPY requirements.txt /prometheus-pgbouncer-exporter/