diff --git a/shell.nix b/shell.nix
index 61f057876..a4155b479 100644
--- a/shell.nix
+++ b/shell.nix
@@ -5,5 +5,5 @@ let
 in
   stdenv.mkDerivation {
     name = "trezor-core-dev";
-    buildInputs = [ myPython protobuf scons gnumake gcc gcc-arm-embedded pkgconfig SDL2 SDL2_image ];
+    buildInputs = [ myPython protobuf scons gnumake gcc gcc-arm-embedded-7 pkgconfig SDL2 SDL2_image ];
   }