diff --git a/pkgs/tools/networking/socat/default.nix b/pkgs/tools/networking/socat/default.nix
index ec62c105c62..500d33827b3 100644
--- a/pkgs/tools/networking/socat/default.nix
+++ b/pkgs/tools/networking/socat/default.nix
@@ -1,11 +1,11 @@
 { stdenv, fetchurl, openssl, readline, which, nettools }:
 
 stdenv.mkDerivation rec {
-  name = "socat-1.7.3.3";
+  name = "socat-1.7.3.4";
 
   src = fetchurl {
     url = "http://www.dest-unreach.org/socat/download/${name}.tar.bz2";
-    sha256 = "0jnhjijyq74g3wa4ph0am83z6vq7qna7ac0xqjma8s4197z3zmhd";
+    sha256 = "1z7xgnwiqpcv1j6aghhj9nqbx7cg3gpc4n9j7vi9hm7nhv5788wp";
   };
 
   patches = stdenv.lib.optional stdenv.isDarwin ./speed-type-fix.patch;