diff --git a/pkgs/tools/security/afl/default.nix b/pkgs/tools/security/afl/default.nix
index 28e1a0370b3..5348b579cd7 100644
--- a/pkgs/tools/security/afl/default.nix
+++ b/pkgs/tools/security/afl/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name    = "afl-${version}";
-  version = "0.79b";
+  version = "0.85b";
 
   src = fetchurl {
     url    = "http://lcamtuf.coredump.cx/afl/releases/${name}.tgz";
-    sha256 = "186hyj1arkr8lxcb805x97k9i1ivrnphzqr6h9lrl1pb83n16jkw";
+    sha256 = "010sgsjxb76bsqaw7sa5mm9r4avpf4c0bw9q2898bymfqisji033";
   };
 
   buildPhase   = "make PREFIX=$out";