diff --git a/pkgs/development/libraries/libmicrohttpd/default.nix b/pkgs/development/libraries/libmicrohttpd/default.nix
index 0ecd568c376..f75d32c4313 100644
--- a/pkgs/development/libraries/libmicrohttpd/default.nix
+++ b/pkgs/development/libraries/libmicrohttpd/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "libmicrohttpd-${version}";
-  version = "0.9.63";
+  version = "0.9.64";
 
   src = fetchurl {
     url = "mirror://gnu/libmicrohttpd/${name}.tar.gz";
-    sha256 = "173lj66crwvhzwp1r812sc5h1hda7g6lb9l1y5zf7w3pw4dnzhrp";
+    sha256 = "03imzkd1hl2mkkpi84vg5xq9x6b58gwsv86ym85km0lhb7nxi4p7";
   };
 
   outputs = [ "out" "dev" "devdoc" "info" ];