diff --git a/pkgs/misc/emulators/wine/sources.nix b/pkgs/misc/emulators/wine/sources.nix
index 760870413bf..3a5abe18d75 100644
--- a/pkgs/misc/emulators/wine/sources.nix
+++ b/pkgs/misc/emulators/wine/sources.nix
@@ -44,9 +44,9 @@ in rec {
 
   unstable = fetchurl rec {
     # NOTE: Don't forget to change the SHA256 for staging as well.
-    version = "6.0-rc3";
+    version = "6.0-rc4";
     url = "https://dl.winehq.org/wine/source/6.0/wine-${version}.tar.xz";
-    sha256 = "sha256-cD1rp4T1wrhIIbTGzbYhCzrE4PUxCM0HoWmvgMnZQz4=";
+    sha256 = "sha256-ndeBORgnfYmtPbvZEesaetocknePF8cnyjqfulkcfsU=";
     inherit (stable) mono gecko32 gecko64;
 
     patches = [
@@ -58,7 +58,7 @@ in rec {
   staging = fetchFromGitHub rec {
     # https://github.com/wine-staging/wine-staging/releases
     inherit (unstable) version;
-    sha256 = "sha256-/m4U6kBb89FGXTF6XglUhE+MrIuWQpxsY5SdrEJ5MSY=";
+    sha256 = "sha256-GdFiCGnGSDOxGERlfsPMJdSrQTvnx8gf4z4joqIKT7c=";
     owner = "wine-staging";
     repo = "wine-staging";
     rev = "v${version}";