diff --git a/pkgs/tools/package-management/dpkg/default.nix b/pkgs/tools/package-management/dpkg/default.nix
index bc07f3e536f..a14602de64e 100644
--- a/pkgs/tools/package-management/dpkg/default.nix
+++ b/pkgs/tools/package-management/dpkg/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "dpkg-${version}";
-  version = "1.18.5";
+  version = "1.18.6";
 
   src = fetchurl {
     url = "mirror://debian/pool/main/d/dpkg/dpkg_${version}.tar.xz";
-    sha256 = "01wb8qa4vv2dpd1gv5bm0qzgzb35wn5ij7daqd7b3977l5k6lkh7";
+    sha256 = "18nywp0gs8bnywll9qrcg8g1fli4p5xd6h8sazhsmrxgp8iw62yx";
   };
 
   postPatch = ''