diff --git a/Dockerfile b/Dockerfile
index 0cf4ef5..46dcc41 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ghcr.io/ministryofjustice/analytical-platform-airflow-python-base:1.16.0@sha256:96551185eef8ff5f54f82b6a55c5df570a795d155851cde1811f230423efca1b
+FROM ghcr.io/ministryofjustice/analytical-platform-airflow-python-base:1.21.0@sha256:c312e931a1a4822af79b2fe567c62f37ee1264dd34507a9ccd16b98c95bf7ea9
 
 # https://docs.astral.sh/uv/guides/integration/docker/#compiling-bytecode
 ENV UV_COMPILE_BYTECODE=1