diff --git a/pkgs/development/libraries/opencv/4.x.nix b/pkgs/development/libraries/opencv/4.x.nix
index f976f94edc01..574c77f51644 100644
--- a/pkgs/development/libraries/opencv/4.x.nix
+++ b/pkgs/development/libraries/opencv/4.x.nix
@@ -103,7 +103,7 @@ let
     ;
   inherit (lib.trivial) flip;
 
-  version = "4.11.0";
+  version = "4.12.0";
 
   # It's necessary to consistently use backendStdenv when building with CUDA
   # support, otherwise we get libstdc++ errors downstream
@@ -114,7 +114,7 @@ let
     owner = "opencv";
     repo = "opencv";
     tag = version;
-    hash = "sha256-oiU4CwoMfuUbpDtujJVTShMCzc5GsnIaprC4DzkSzEM=";
+    hash = "sha256-TZdEeZyBY3vCI53g4VDMzl3AASMuXAZKrSH/+XlxR7c=";
   };
 
   contribSrc = fetchFromGitHub {