diff --git a/pkgs/development/quickemu/default.nix b/pkgs/development/quickemu/default.nix
index 95043c7be482..39400d5b4bc6 100644
--- a/pkgs/development/quickemu/default.nix
+++ b/pkgs/development/quickemu/default.nix
@@ -25,6 +25,7 @@
 , quickemu
 , testers
 , installShellFiles
+, fetchpatch
 }:
 let
   runtimePaths = [
@@ -50,15 +51,23 @@ in
 
 stdenv.mkDerivation rec {
   pname = "quickemu";
-  version = "4.8";
+  version = "4.9";
 
   src = fetchFromGitHub {
     owner = "quickemu-project";
     repo = "quickemu";
     rev = version;
-    hash = "sha256-QchY9inmBqAwNEhUL+uFCRX1laaM57ICbDJEBW7qTic=";
+    hash = "sha256-ZCHGZb4mdtnNfFBcSqZJRW7fmkTBrWrVko3iwEhO1RY=";
   };
 
+  patches = [
+    # https://github.com/quickemu-project/quickemu/pull/815
+    (fetchpatch {
+      url = "https://github.com/quickemu-project/quickemu/commit/2b9d95a746fd85be0cea48e5544b18dc3ae18d27.patch";
+      hash = "sha256-fTJEd3o7LznT1mGwfxXWlW8XM1BmIeId+j8pGjIfIcE=";
+    })
+  ];
+
   postPatch = ''
     sed -i \
       -e '/OVMF_CODE_4M.secboot.fd/s|ovmfs=(|ovmfs=("${OVMFFull.fd}/FV/OVMF_CODE.fd","${OVMFFull.fd}/FV/OVMF_VARS.fd" |' \