diff --git a/flusher/Dockerfile b/flusher/Dockerfile
index 0ba5ab7520..805db842bf 100644
--- a/flusher/Dockerfile
+++ b/flusher/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3-slim
+FROM python:3.13.0b2-slim
 
 COPY . .
 RUN apt-get update && apt-get install -y libpq-dev gcc