diff --git a/README.org b/README.org
index 351b13a..d11a189 100644
--- a/README.org
+++ b/README.org
@@ -319,9 +319,7 @@ mkShell {
     grpc
     grpcui
     grpcurl
-
-    # FIXME: Broken on nixpkgs/unstable.
-    # grpc-tools
+    grpc-tools
   ];
   shellHook = ''
   '';
diff --git a/shells/grpc.nix b/shells/grpc.nix
index 76aecac..1a43913 100644
--- a/shells/grpc.nix
+++ b/shells/grpc.nix
@@ -7,9 +7,7 @@ mkShell {
     grpc
     grpcui
     grpcurl
-
-    # FIXME: Broken on nixpkgs/unstable.
-    # grpc-tools
+    grpc-tools
   ];
   shellHook = ''
   '';