diff --git a/baikai-claude.cabal b/baikai-claude.cabal
--- a/baikai-claude.cabal
+++ b/baikai-claude.cabal
@@ -1,6 +1,6 @@
 cabal-version: 3.4
 name:          baikai-claude
-version:       0.4.0.0
+version:       0.4.0.1
 synopsis:      Anthropic Claude providers for the baikai abstraction
 description:
   Wraps the claude Haskell package as a Baikai Provider for both the Anthropic API and the
@@ -51,7 +51,7 @@
     , claude             ^>=1.4
     , containers         ^>=0.7
     , cradle             ^>=0.0
-    , crypton            ^>=1.0
+    , crypton            >=1.0    && <1.2
     , generic-lens       ^>=2.3
     , http-client        ^>=0.7
     , http-client-tls    ^>=0.3