diff --git a/pkgs/development/libraries/afflib/default.nix b/pkgs/development/libraries/afflib/default.nix
index 5ccb7f95ee1..5170e384f77 100644
--- a/pkgs/development/libraries/afflib/default.nix
+++ b/pkgs/development/libraries/afflib/default.nix
@@ -3,14 +3,14 @@
 }:
 
 stdenv.mkDerivation rec {
-  version = "3.7.17";
+  version = "3.7.18";
   name = "afflib-${version}";
 
   src = fetchFromGitHub {
     owner = "sshock";
     repo = "AFFLIBv3";
     rev = "v${version}";
-    sha256 = "11q20n6p5nvwmd9wwk0addlfxpxagf47ly89scn3jvc7k484ksan";
+    sha256 = "0963gw316p4nyxa9zxmgif29p8i99k898av2g78g28dxafqj3w8c";
   };
 
   nativeBuildInputs = [ autoreconfHook ];