diff --git a/pkgs/applications/editors/atom/default.nix b/pkgs/applications/editors/atom/default.nix
index 8c77687d8758..33d78591151e 100644
--- a/pkgs/applications/editors/atom/default.nix
+++ b/pkgs/applications/editors/atom/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "atom-${version}";
-  version = "1.20.1";
+  version = "1.21.0";
 
   src = fetchurl {
     url = "https://github.com/atom/atom/releases/download/v${version}/atom-amd64.deb";
-    sha256 = "0mr82m3yv18ljai3r4ncr65bqhjwxyf1si77iza4ijk5zv1llp7i";
+    sha256 = "0xnja2jdjjryisxgyxhh8ik861snl9wdpmr3rjlnalfglghqqb5h";
     name = "${name}.deb";
   };
 
@@ -32,8 +32,8 @@ stdenv.mkDerivation rec {
       --set-rpath "${atomEnv.libPath}" \
       $out/share/atom/resources/app/apm/bin/node
 
-    rm -f $out/share/atom/resources/app/node_modules/dugite/git/bin/git
-    ln -s ${pkgs.git}/bin/git $out/share/atom/resources/app/node_modules/dugite/git/bin/git
+    rm -f $out/share/atom/resources/app.asar.unpacked/node_modules/dugite/git/bin/git
+    ln -s ${pkgs.git}/bin/git $out/share/atom/resources/app.asar.unpacked/node_modules/dugite/git/bin/git
 
     find $out/share/atom -name "*.node" -exec patchelf --set-rpath "${atomEnv.libPath}:$out/share/atom" {} \;