diff --git a/pkgs/applications/networking/mailreaders/mblaze/default.nix b/pkgs/applications/networking/mailreaders/mblaze/default.nix
index 6356fcfc209..2da31336410 100644
--- a/pkgs/applications/networking/mailreaders/mblaze/default.nix
+++ b/pkgs/applications/networking/mailreaders/mblaze/default.nix
@@ -2,7 +2,7 @@
 
 stdenv.mkDerivation rec {
   name = "mblaze-${version}";
-  version = "0.5";
+  version = "0.5.1";
 
   buildInputs = stdenv.lib.optionals stdenv.isDarwin [ libiconv ];
 
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
     owner = "chneukirchen";
     repo = "mblaze";
     rev = "v${version}";
-    sha256 = "0fyvydafpz7vmwgn7hc4drm9sb7367smrd07wfyizpas0gmxw2j8";
+    sha256 = "11x548dl2jy9cmgsakqrzfdq166whhk4ja7zkiaxrapkjmkf6pbh";
   };
 
   makeFlags = "PREFIX=$(out)";