diff --git a/pkgs/applications/networking/browsers/palemoon/bin.nix b/pkgs/applications/networking/browsers/palemoon/bin.nix
index b204f23a673e..cd97c55eb4b5 100644
--- a/pkgs/applications/networking/browsers/palemoon/bin.nix
+++ b/pkgs/applications/networking/browsers/palemoon/bin.nix
@@ -20,7 +20,7 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "palemoon-bin";
-  version = "33.3.1";
+  version = "33.4.0.1";
 
   src = finalAttrs.passthru.sources."gtk${if withGTK3 then "3" else "2"}";
 
@@ -158,11 +158,11 @@ stdenv.mkDerivation (finalAttrs: {
     in {
       gtk3 = fetchzip {
         urls = urlRegionVariants "gtk3";
-        hash = "sha256-auo45tzMY6bKahSEmUrkcYnz7v+GFbsrG+ePAKRC00U=";
+        hash = "sha256-34x9L0L42KO7mUDaW41I71ln5xyHGAKBoAJ6HcDC//g=";
       };
       gtk2 = fetchzip {
         urls = urlRegionVariants "gtk2";
-        hash = "sha256-7qrT5fSfwcEAkbq8g/HRoUiDv5+qrzpiysjHTdZVgLc=";
+        hash = "sha256-TRIgfqKsJxueZ/Oazw7kTLjVyxdh+IUiR+XDaemow9A=";
       };
     };