diff --git a/pkgs/tools/networking/unbound/default.nix b/pkgs/tools/networking/unbound/default.nix
index 0f51d72322a..e83e5268629 100644
--- a/pkgs/tools/networking/unbound/default.nix
+++ b/pkgs/tools/networking/unbound/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "unbound";
-  version = "1.9.3";
+  version = "1.9.4";
 
   src = fetchurl {
     url = "https://unbound.net/downloads/${pname}-${version}.tar.gz";
-    sha256 = "1ykdy62sgzv33ggkmzwx2h0ifm7hyyxyfkb4zckv7gz4f28xsm8v";
+    sha256 = "1c2bjm13x8bkw0ds1mhn9ivd2gzmfrb0x5y76bkz09a04bxjagix";
   };
 
   # https://github.com/NLnetLabs/unbound/pull/90