diff --git a/apiary-helics.cabal b/apiary-helics.cabal
--- a/apiary-helics.cabal
+++ b/apiary-helics.cabal
@@ -1,5 +1,5 @@
 name:                apiary-helics
-version:             1.1.0
+version:             1.1.1
 synopsis:            helics support for apiary web framework.
 description:         helics support for apiary web framework.
 license:             MIT
@@ -20,7 +20,7 @@
   other-modules:       
   build-depends:       base               >=4.6   && <4.8
                      , apiary             >=1.1   && <1.2
-                     , helics             >=0.2   && <0.3
+                     , helics             >=0.2   && <0.4
                      , helics-wai         >=0.2   && <0.3
                      , vault              >=0.3   && <0.4
                      , transformers       >=0.3   && <0.5