diff --git a/pkgs/servers/dns/pdns-recursor/default.nix b/pkgs/servers/dns/pdns-recursor/default.nix
index 0e8d1e70bc7..664fabbb312 100644
--- a/pkgs/servers/dns/pdns-recursor/default.nix
+++ b/pkgs/servers/dns/pdns-recursor/default.nix
@@ -11,11 +11,11 @@ with stdenv.lib;
 
 stdenv.mkDerivation rec {
   name = "pdns-recursor-${version}";
-  version = "4.0.4";
+  version = "4.0.6";
 
   src = fetchurl {
     url = "https://downloads.powerdns.com/releases/pdns-recursor-${version}.tar.bz2";
-    sha256 = "0k8y9zxj2lz4rq782vgzr28yd43q0hwlnvszwq0k9l6c967pff13";
+    sha256 = "03fnjiacvhdlkr3a2206mham0p6p24gkawashs5v12r68k32l67j";
   };
 
   nativeBuildInputs = [ pkgconfig ];