diff --git a/flake.lock b/flake.lock
index 54a6932..c213009 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,11 +2,11 @@
   "nodes": {
     "emacs-overlay": {
       "locked": {
-        "lastModified": 1621565684,
-        "narHash": "sha256-EDssKjLt2dDXatuZaLPw8qi8FwWAiOmbPMEoi782UhU=",
+        "lastModified": 1621245326,
+        "narHash": "sha256-tGsrUnp3Zl8rvDq/JXOSK9IPkT0ZRqaXTZddix/V16Q=",
         "owner": "nix-community",
         "repo": "emacs-overlay",
-        "rev": "cb4febf24b04ef44abe7aaa692e71b965083294d",
+        "rev": "a8663485e83d0975f9ef0288194838078dab90cd",
         "type": "github"
       },
       "original": {
@@ -55,11 +55,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1621288494,
-        "narHash": "sha256-3lQCSw8/J076UwoQhtSVymOibLuojlqF9BAMP6X+/48=",
+        "lastModified": 1621073999,
+        "narHash": "sha256-Cp99YreSFedcWovxNmO8g8qFYltQQJPRLfuot6Z7iGE=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "673aea9f84c955c94b105797fdc56007017af4db",
+        "rev": "83d907fd760d9ee4f49b4b7e4b1c6682f137b573",
         "type": "github"
       },
       "original": {
diff --git a/home/emacs.nix b/home/emacs.nix
index 34d4dab..3ce995b 100644
--- a/home/emacs.nix
+++ b/home/emacs.nix
@@ -23,7 +23,9 @@
 
     programs.emacs = {
       enable = true;
-      package = pkgs.emacsPgtkGcc;
+      # FIXME: revert when pgtk branch merged master
+      # package = pkgs.emacsPgtkGcc;
+      package = pkgs.emacsGcc;
     };
   };
 }