diff --git a/sandbox/pyodide/build_packages.sh b/sandbox/pyodide/build_packages.sh
index e1e2d077..4cd96b73 100644
--- a/sandbox/pyodide/build_packages.sh
+++ b/sandbox/pyodide/build_packages.sh
@@ -17,7 +17,7 @@ echo "###############################################################"
 echo "## Prepare python packages"
 
 cd _build/pyodide
-git checkout main
+git checkout 0.23.4 || (git fetch && git checkout 0.23.4)
 ./run_docker make
 cp ../../../requirements3.txt .
 ./run_docker "source emsdk/emsdk/emsdk_env.sh && pyodide build -r requirements3.txt --outdir grist-packages"
diff --git a/sandbox/pyodide/package_filenames.json b/sandbox/pyodide/package_filenames.json
index 1a4d8cea..00d88167 100644
--- a/sandbox/pyodide/package_filenames.json
+++ b/sandbox/pyodide/package_filenames.json
@@ -6,7 +6,7 @@
   "executing-1.1.1-cp311-none-any.whl",
   "friendly_traceback-0.7.48-cp311-none-any.whl",
   "iso8601-0.1.12-cp311-none-any.whl",
-  "lazy_object_proxy-1.6.0-cp311-cp311-emscripten_3_1_39_wasm32.whl",
+  "lazy_object_proxy-1.6.0-cp311-cp311-emscripten_3_1_32_wasm32.whl",
   "openpyxl-3.0.10-cp311-none-any.whl",
   "phonenumberslite-8.12.57-cp311-none-any.whl",
   "pure_eval-0.2.2-cp311-none-any.whl",