diff --git a/pkgs/development/python-modules/cryptacular/default.nix b/pkgs/development/python-modules/cryptacular/default.nix
index 02c1c420bfda..5ec1ccacae99 100644
--- a/pkgs/development/python-modules/cryptacular/default.nix
+++ b/pkgs/development/python-modules/cryptacular/default.nix
@@ -3,11 +3,11 @@
 
 buildPythonPackage rec {
   pname = "cryptacular";
-  version = "1.4.1";
+  version = "1.5.5";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "18fl7phl6r9xiwz8f1jpkahkv21wimmiq72gmrqncccv7z806gr7";
+    sha256 = "fb4d48716e88e4d050255ff0f065f6d437caa358ceef16ba5840c95cece224f9";
   };
 
   buildInputs = [ coverage nose ];