diff --git a/pkgs/development/libraries/libtasn1/default.nix b/pkgs/development/libraries/libtasn1/default.nix
index edaae75a66b5..f70f7d348016 100644
--- a/pkgs/development/libraries/libtasn1/default.nix
+++ b/pkgs/development/libraries/libtasn1/default.nix
@@ -1,11 +1,11 @@
 { stdenv, fetchurl }:
 
 stdenv.mkDerivation rec {
-  name = "libtasn1-2.11";
+  name = "libtasn1-2.12";
 
   src = fetchurl {
     url = "mirror://gnu/libtasn1/${name}.tar.gz";
-    sha256 = "1yws0xfys6fm7ywb3pr8ncl3gr37iky7454if8dbzsicq5vkrm7l";
+    sha256 = "0p8w38l04fgm82iqgl1abhb1ajp04v116bi6fd7lc3n80657l98f";
   };
 
   doCheck = true;