diff --git a/.github/workflows/check-release.yml b/.github/workflows/check-release.yml
index 2bb84b4..e265f7c 100644
--- a/.github/workflows/check-release.yml
+++ b/.github/workflows/check-release.yml
@@ -27,7 +27,7 @@ jobs:
           version_spec: next
 
       - name: Upload Distributions
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: pyjs-code-runner-releaser-dist-${{ github.run_number }}
           path: .jupyter_releaser_checkout/dist
diff --git a/pyjs_code_runner/js/utils.js b/pyjs_code_runner/js/utils.js
index acb5053..4adb5c6 100644
--- a/pyjs_code_runner/js/utils.js
+++ b/pyjs_code_runner/js/utils.js
@@ -14,12 +14,12 @@ async function fetchMounts(pyjs) {
     let mounts = await response.json();
     pyjs.FS.mkdir("/mount_tarballs");
     await Promise.all(mounts.map(mount => fetchMount(pyjs, mount)));
-    
+
 }
 
 async function make_pyjs(print, error) {
     var pyjs = await createModule({ print: print, error: print })
-    
+
    await pyjs.bootstrap_from_empack_packed_environment(
         `./empack_env_meta.json`, /* packages_json_url */
         ".",               /* package_tarballs_root_url */
@@ -40,7 +40,7 @@ function eval_main_script(pyjs, workdir, filename) {
     }
     catch (e) {
         if (typeof e === "number") {
-            const msg = pyjs.get_exception_message(e);
+            const msg = pyjs.extract_exception_message(e);
             console.error("error while evaluating main file:", msg)
         }
         else {
diff --git a/test/conftest.py b/test/conftest.py
index 5a6d201..607a0f8 100644
--- a/test/conftest.py
+++ b/test/conftest.py
@@ -24,7 +24,7 @@ def env_prefix(tmp_path_factory):
         "-c https://repo.mamba.pm/emscripten-forge -c https://repo.mamba.pm/conda-forge"
     )
     cmd = [
-        f"""$MAMBA_EXE create {channels} --yes --prefix {env_prefix} --platform=emscripten-32   python numpy pyjs>=2.7.0"""
+        f"""$MAMBA_EXE create {channels} --yes --prefix {env_prefix} --platform=emscripten-32   python numpy pyjs>=2.7.1"""
     ]
 
     ret = subprocess.run(cmd, shell=True)