diff --git a/pkgs/applications/audio/ledfx/default.nix b/pkgs/applications/audio/ledfx/default.nix
index 54563b207f05..31e7d23f75df 100644
--- a/pkgs/applications/audio/ledfx/default.nix
+++ b/pkgs/applications/audio/ledfx/default.nix
@@ -16,7 +16,7 @@ python3.pkgs.buildPythonPackage rec {
   postPatch = ''
     substituteInPlace setup.py \
       --replace "'rpi-ws281x>=4.3.0; platform_system == \"Linux\"'," "" \
-      --replace '"sentry-sdk==1.14.0",' "" \
+      --replace '"sentry-sdk==1.14.0",' "sentry-sdk" \
       --replace "~=" ">="
   '';
 
@@ -40,6 +40,8 @@ python3.pkgs.buildPythonPackage rec {
     psutil
     pyserial
     pystray
+    python-mbedtls
+    python-osc
     python-rtmidi
     # rpi-ws281x # not packaged
     requests