diff --git a/pkgs/development/libraries/boost-ext/boost-sml/default.nix b/pkgs/development/libraries/boost-ext/boost-sml/default.nix
index 0383adca64a4..7987629b60d3 100644
--- a/pkgs/development/libraries/boost-ext/boost-sml/default.nix
+++ b/pkgs/development/libraries/boost-ext/boost-sml/default.nix
@@ -7,13 +7,13 @@
 
 stdenv.mkDerivation rec {
   pname = "boost-sml";
-  version = "1.1.9";
+  version = "1.1.11";
 
   src = fetchFromGitHub {
     owner = "boost-ext";
     repo = "sml";
     rev = "v${version}";
-    hash = "sha256-RYgSpnsmgZybpkJALIzxpkDRfe9QF2FHG+nA3msFaK0=";
+    hash = "sha256-/eR/B8rE+mh5zDPjx1kS9nVJf1rCeHP04QDavh6z6fM=";
   };
 
   buildInputs = [ boost ];