diff --git a/MANIFEST.in b/MANIFEST.in
new file mode 100644
index 0000000000..a02aa6ecd7
--- /dev/null
+++ b/MANIFEST.in
@@ -0,0 +1,2 @@
+recursive-include src/ifcopenshell-python/ifcopenshell/util/schema *.json
+recursive-include src/ifcopenshell-python/ifcopenshell/util/schema *.ifc
\ No newline at end of file
diff --git a/src/pyodide/demo-app/tests/missing_files_issue.html b/src/pyodide/demo-app/tests/missing_files_issue.html
index 724bfa7185..41f6b18c16 100644
--- a/src/pyodide/demo-app/tests/missing_files_issue.html
+++ b/src/pyodide/demo-app/tests/missing_files_issue.html
@@ -21,7 +21,7 @@
             const micropip = pyodide.pyimport("micropip");
             await micropip.install("typing-extensions");
             document.querySelector("#status").innerHTML = "Loading IfcOpenShell";
-            await micropip.install("../wheels/ifcopenshell-0.8.3+34a1bc6-cp313-cp313-emscripten_4_0_9_wasm32.whl");
+            await micropip.install("../wheels/ifcopenshell-0.8.4+c64b477-cp313-cp313-emscripten_4_0_9_wasm32.whl");
 
             document.querySelector("#status").innerHTML = "Loading test script";