diff --git a/pkgs/by-name/li/libosmium/package.nix b/pkgs/by-name/li/libosmium/package.nix
index dffca35acfcb..f1d66a8fb58e 100644
--- a/pkgs/by-name/li/libosmium/package.nix
+++ b/pkgs/by-name/li/libosmium/package.nix
@@ -13,13 +13,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "libosmium";
-  version = "2.22.0";
+  version = "2.23.0";
 
   src = fetchFromGitHub {
     owner = "osmcode";
     repo = "libosmium";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-b4jdPh6lJ/ALPVblDt16Nabx9ZL8MW8/roI+NqTZshU=";
+    hash = "sha256-VYNNp7czQgIvPhYxXlPaY/qlVxoZZ6CiJXWrHW+zAD8=";
   };
 
   nativeBuildInputs = [ cmake ];
@@ -34,8 +34,6 @@ stdenv.mkDerivation (finalAttrs: {
   ];
 
   cmakeFlags = [
-    # Fix the build with CMake 4.
-    "-DCMAKE_POLICY_VERSION_MINIMUM=3.5"
     (lib.cmakeBool "INSTALL_GDALCPP" true)
   ];