diff --git a/Dockerfile b/Dockerfile
index e117e06..3402120 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,19 +8,19 @@ ENV \
     PYTHONIOENCODING=UTF-8 \
     LC_ALL=en_US.UTF-8 \
     LANG=en_US.UTF-8 \
-    CNB_STACK_ID=ch.rabe.it.stacks.ubi9-python-39 \
+    CNB_STACK_ID=ch.rabe.it.stacks.ubi9-python-311 \
     CNB_USER_ID=1001 \
     CNB_GROUP_ID=0 \
     PIP_NO_CACHE_DIR=off \
     PATH=$APP_ROOT/bin:$HOME/bin:$HOME/.local/bin:$PATH
 
-COPY --from=registry.access.redhat.com/ubi9/python-39:1-90 \
+COPY --from=registry.access.redhat.com/ubi9/python-311:1-7 \
      $STI_SCRIPTS_PATH/assemble \
      $STI_SCRIPTS_PATH/init-wrapper \
      $STI_SCRIPTS_PATH/run \
      $STI_SCRIPTS_PATH/usage \
      $STI_SCRIPTS_PATH/
-COPY --from=registry.access.redhat.com/ubi9/python-39:1-90 \
+COPY --from=registry.access.redhat.com/ubi9/python-311:1-7 \
      $APP_ROOT/etc/scl_enable \
      $APP_ROOT/etc/
 
@@ -30,13 +30,13 @@ ENV BASH_ENV=${APP_ROOT}/etc/scl_enable \
 
 RUN    microdnf install -y \
          nss_wrapper \
-         python3 \
-         python3-pip-wheel \
-         python3-wheel-wheel \
+         python3.11 \
+         python3.11-pip-wheel \
+         python3.11-wheel-wheel \
     && microdnf clean all \
-    && python3.9 -mvenv ${APP_ROOT} \
-    && python3.9 -mpip install /usr/share/python3-wheels/wheel-*.whl \
-    && python3.9 -mpip install build \
+    && python3.11 -mvenv ${APP_ROOT} \
+    && python3.11 -mpip install /usr/share/python3-wheels/wheel-*.whl \
+    && python3.11 -mpip install build \
     && chown -R 1001:0 ${APP_ROOT} \
     && fix-permissions ${APP_ROOT} -P \
     && rpm-file-permissions