diff --git a/setup.cfg b/setup.cfg
index c353888b..191f4e9e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -35,7 +35,7 @@ install_requires =
     appdirs >= 1.4; platform_system!='Emscripten'
     bt-test-interfaces >= 0.0.2; platform_system!='Emscripten'
     click == 8.1.3; platform_system!='Emscripten'
-    cryptography == 39
+    cryptography == 39; platform_system!='Emscripten'
     grpcio == 1.57.0; platform_system!='Emscripten'
     humanize >= 4.6.0; platform_system!='Emscripten'
     libusb1 >= 2.0.1; platform_system!='Emscripten'
diff --git a/web/bumble.js b/web/bumble.js
index b1243a56..c5fd6a3b 100644
--- a/web/bumble.js
+++ b/web/bumble.js
@@ -74,6 +74,7 @@ export async function loadBumble(pyodide, bumblePackage) {
     await pyodide.loadPackage("micropip");
     await pyodide.runPythonAsync(`
         import micropip
+        await micropip.install("cryptography")
         await micropip.install("${bumblePackage}")
         package_list = micropip.list()
         print(package_list)