diff --git a/pkgs/os-specific/linux/libcap/default.nix b/pkgs/os-specific/linux/libcap/default.nix
index 0577107fd026..75ba8710449d 100644
--- a/pkgs/os-specific/linux/libcap/default.nix
+++ b/pkgs/os-specific/linux/libcap/default.nix
@@ -7,11 +7,11 @@ assert usePam -> pam != null;
 
 stdenv.mkDerivation rec {
   pname = "libcap";
-  version = "2.65";
+  version = "2.66";
 
   src = fetchurl {
     url = "mirror://kernel/linux/libs/security/linux-privs/libcap2/${pname}-${version}.tar.xz";
-    sha256 = "sha256-c+NQAgzDH+FTYIedGThP+jOVqCXwZfz2vaOlzfllvr0=";
+    sha256 = "sha256-FcQO3tswA9cKKD/lh6NrfRnIs7VU4z+GEpwFmku0ZrI=";
   };
 
   outputs = [ "out" "dev" "lib" "man" "doc" ]