diff --git a/dockerimg/testdata/testcreatedockerfile_python_misery.dockerfile b/dockerimg/testdata/testcreatedockerfile_python_misery.dockerfile
index fb0e525..38073d3 100644
--- a/dockerimg/testdata/testcreatedockerfile_python_misery.dockerfile
+++ b/dockerimg/testdata/testcreatedockerfile_python_misery.dockerfile
@@ -1,4 +1,4 @@
-FROM ghcr.io/boldsoftware/sketch:538be6f879a81c5caca6bc08e5c2097c
+FROM ghcr.io/boldsoftware/sketch:a73fec46b81f26cba546a2f4c44ff381
 
 ARG GIT_USER_EMAIL
 ARG GIT_USER_NAME
@@ -7,7 +7,7 @@
     git config --global user.name "$GIT_USER_NAME" && \
     git config --global http.postBuffer 524288000
 
-LABEL sketch_context="d27408dab7235a7280709f1023a865867040b21a41ebfbe40272ad4447895482"
+LABEL sketch_context="1d1c9c1f11f73ce13926ecb7fd8d24b37aae41a512a3a8e181fb4edbea523931"
 COPY . /app
 RUN rm -f /app/tmp-sketch-dockerfile
 
@@ -17,11 +17,8 @@
 # Switch to lenient shell so we are more likely to get past failing extra_cmds.
 SHELL ["/bin/bash", "-uo", "pipefail", "-c"]
 
-RUN apt-get update && apt-get install -y --no-install-recommends software-properties-common || true
-RUN add-apt-repository ppa:deadsnakes/ppa || true
-RUN apt-get update && apt-get install -y --no-install-recommends python3.11 python3.11-pip python3.11-venv || true
-RUN python3.11 -m pip install --upgrade pip || true
-RUN python3.11 -m pip install dvc || true
+RUN apt-get update && apt-get install -y --no-install-recommends python3.11 python3.11-pip python3.11-venv || true && apt-get clean && rm -rf /var/lib/apt/lists/*
+RUN python3.11 -m pip install --no-cache-dir dvc || true
 
 # Switch back to strict shell after extra_cmds.
 SHELL ["/bin/bash", "-euxo", "pipefail", "-c"]