diff --git a/.github/workflows/py3_casacore_master.docker b/.github/workflows/py3_casacore_master.docker
index eb8abf4..31cee34 100644
--- a/.github/workflows/py3_casacore_master.docker
+++ b/.github/workflows/py3_casacore_master.docker
@@ -1,4 +1,4 @@
-FROM quay.io/casacore/casacore:master
+FROM quay.io/casacore/casacore:py312_master
 USER root
 RUN docker-apt-install \
     libboost-python-dev \