diff --git a/pkgs/development/libraries/opencv/4.x.nix b/pkgs/development/libraries/opencv/4.x.nix
index f3a264cf2644..45462686311b 100644
--- a/pkgs/development/libraries/opencv/4.x.nix
+++ b/pkgs/development/libraries/opencv/4.x.nix
@@ -121,14 +121,14 @@ let
     owner = "opencv";
     repo = "opencv_contrib";
     tag = version;
-    hash = "sha256-YNd96qFJ8SHBgDEEsoNps888myGZdELbbuYCae9pW3M=";
+    hash = "sha256-3tbscRFryjCynIqh0OWec8CUjXTeIDxOGJkHTK2aIao=";
   };
 
   testDataSrc = fetchFromGitHub {
     owner = "opencv";
     repo = "opencv_extra";
     tag = version;
-    hash = "sha256-EqlGlemztYlk03MX1LAviArWT+OA3/qL3jfgHYC+SP8=";
+    hash = "sha256-f8PZyFLdfixt1ApjMc9Cvj9nfEaDRUszSeEfCsWziis=";
   };
 
   # Contrib must be built in order to enable Tesseract support: