diff --git a/pkgs/development/libraries/libestr/default.nix b/pkgs/development/libraries/libestr/default.nix
index 96de7eb7b3c2..df67b849cd3f 100644
--- a/pkgs/development/libraries/libestr/default.nix
+++ b/pkgs/development/libraries/libestr/default.nix
@@ -1,11 +1,11 @@
 { stdenv, fetchurl }:
 
 stdenv.mkDerivation rec {
-  name = "libestr-0.1.10";
+  name = "libestr-0.1.11";
 
   src = fetchurl {
     url = "http://libestr.adiscon.com/files/download/${name}.tar.gz";
-    sha256 = "0g3hmh3wxgjbn5g6cgy2l0ja806jd0ayp22bahcds3kmdq95wrdx";
+    sha256 = "0910ifzcs8kpd3srrr4fvbacgh2zrc6yn7i4rwfj6jpzhlkjnqs6";
   };
 
   meta = with stdenv.lib; {