diff --git a/pkgs/applications/networking/browsers/mozilla-plugins/google-talk-plugin/default.nix b/pkgs/applications/networking/browsers/mozilla-plugins/google-talk-plugin/default.nix
index bde4ce15d7c0..93f2ab2adfa3 100644
--- a/pkgs/applications/networking/browsers/mozilla-plugins/google-talk-plugin/default.nix
+++ b/pkgs/applications/networking/browsers/mozilla-plugins/google-talk-plugin/default.nix
@@ -48,21 +48,21 @@ in
 stdenv.mkDerivation rec {
   pname = "google-talk-plugin";
 
-  # You can get the upstream version and SHA-1 hash from the following URLs:
-  # curl -s http://dl.google.com/linux/talkplugin/deb/dists/stable/main/binary-amd64/Packages | grep -E 'Version|SHA1'
-  # curl -s http://dl.google.com/linux/talkplugin/deb/dists/stable/main/binary-i386/Packages | grep -E 'Version|SHA1'
+  # You can get the upstream version and SHA-256 hash from the following URLs:
+  # curl -s http://dl.google.com/linux/talkplugin/deb/dists/stable/main/binary-amd64/Packages | grep -E 'Version|SHA256'
+  # curl -s http://dl.google.com/linux/talkplugin/deb/dists/stable/main/binary-i386/Packages | grep -E 'Version|SHA256'
   version = "5.41.3.0";
 
   src =
     if stdenv.hostPlatform.system == "x86_64-linux" then
       fetchurl {
         url = "${baseURL}/google-talkplugin_${version}-1_amd64.deb";
-        sha1 = "0bbc3d6997ba22ce712d93e5bc336c894b54fc81";
+        sha256 = "af7e23d2b6215afc547f96615b99f04e0561557cc58c0c9302364b5a3840d97d";
       }
     else if stdenv.hostPlatform.system == "i686-linux" then
       fetchurl {
         url = "${baseURL}/google-talkplugin_${version}-1_i386.deb";
-        sha1 = "6eae0544858f85c68b0cc46d7786e990bd94f139";
+        sha256 = "4c46d2b7f2018640288cd7ac49adc47e309d0beadfd979eb03030e672016b4a7";
       }
     else throw "Google Talk does not support your platform.";