diff --git a/pkgs/development/libraries/libidn2/default.nix b/pkgs/development/libraries/libidn2/default.nix
index 30a33426639..d6706d3bf59 100644
--- a/pkgs/development/libraries/libidn2/default.nix
+++ b/pkgs/development/libraries/libidn2/default.nix
@@ -9,11 +9,11 @@ with lib;
 
 stdenv.mkDerivation rec {
   pname = "libidn2";
-  version = "2.3.0";
+  version = "2.3.1";
 
   src = fetchurl {
     url = "mirror://gnu/gnu/libidn/${pname}-${version}.tar.gz";
-    sha256 = "1ddqr80kmz4l8g3r3gf7bmf2v29fgivlc2bgxfiscjg2sarivjz1";
+    sha256 = "sha256-ivaElDg2uLU5ZdX1tnFO8TwmyR6qNs59JC49IfXUDy0=";
   };
 
   outputs = [ "bin" "dev" "out" "info" "devdoc" ];