diff --git a/pkgs/development/libraries/utf8cpp/default.nix b/pkgs/development/libraries/utf8cpp/default.nix
index a2aac1241cd8..ef02ca2c3134 100644
--- a/pkgs/development/libraries/utf8cpp/default.nix
+++ b/pkgs/development/libraries/utf8cpp/default.nix
@@ -2,14 +2,14 @@
 
 stdenv.mkDerivation rec {
   pname = "utf8cpp";
-  version = "3.1.1";
+  version = "3.1.2";
 
   src = fetchFromGitHub {
     owner = "nemtrif";
     repo = "utfcpp";
     rev = "v${version}";
     fetchSubmodules = true;
-    sha256 = "1s2pda75488z7c3w3a6qv31bj239248696yk5j2a1drbg2x1dpfh";
+    sha256 = "sha256-l5sneFsuvPDIRni2x+aR9fmQ9bzXNnIiP9EzZ63sNtg=";
   };
 
   cmakeFlags = [