diff --git a/pkgs/applications/networking/browsers/palemoon/default.nix b/pkgs/applications/networking/browsers/palemoon/default.nix
index 0c0ef501e99..aa77f084734 100644
--- a/pkgs/applications/networking/browsers/palemoon/default.nix
+++ b/pkgs/applications/networking/browsers/palemoon/default.nix
@@ -10,14 +10,14 @@
 
 stdenv.mkDerivation rec {
   name = "palemoon-${version}";
-  version = "27.8.3";
+  version = "27.9.0";
 
   src = fetchFromGitHub {
     name   = "palemoon-src";
     owner  = "MoonchildProductions";
     repo   = "Pale-Moon";
     rev    = version + "_Release";
-    sha256 = "1v3wliq8k5yq17ms214fhwka8x4l3sq8kja59dx4pbvczzb1zyzh";
+    sha256 = "181g1hy4k9xr6nlrw8jamp541gr5znny4mmpwwaa1lzq5v1w1sw6";
   };
 
   desktopItem = makeDesktopItem {