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:             1.2.0
+version:             1.2.1
 synopsis:            helics support for apiary web framework.
 description:         helics support for apiary web framework.
 license:             MIT
@@ -24,7 +24,7 @@
                      , helics-wai         >=0.5   && <0.6
                      , vault              >=0.3   && <0.4
                      , transformers       >=0.3   && <0.5
-                     , monad-control      >=0.3   && <0.4
+                     , monad-control      >=0.3   && <1.1
                      , wai                >=3.0   && <3.1
                      , bytestring         >=0.10  && <0.11
                      , text               >=1.1   && <1.3