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:             1.3.0
+version:             1.4.0
 synopsis:            helics support for apiary web framework.
 description:         helics support for apiary web framework.
 license:             MIT
@@ -19,7 +19,7 @@
   exposed-modules:     Web.Apiary.Helics
   other-modules:       
   build-depends:       base               >=4.6   && <4.8
-                     , apiary             >=1.1   && <1.4
+                     , apiary             >=1.4   && <1.5
                      , helics             >=0.5   && <0.6
                      , helics-wai         >=0.5   && <0.6
                      , vault              >=0.3   && <0.4
@@ -29,6 +29,7 @@
                      , bytestring         >=0.10  && <0.11
                      , text               >=1.1   && <1.3
                      , data-default-class >=0.0   && <0.1
+                     , types-compat
 
   hs-source-dirs:      src
   ghc-options:         -O2 -Wall
diff --git a/src/Web/Apiary/Helics.hs b/src/Web/Apiary/Helics.hs
--- a/src/Web/Apiary/Helics.hs
+++ b/src/Web/Apiary/Helics.hs
@@ -44,7 +44,7 @@
 import qualified Network.Helics as H
 import qualified Network.Helics.Wai.Safe as Safe
 
-import Data.Apiary.Compat(Proxy(..))
+import Data.Proxy.Compat(Proxy(..))
 import Data.Apiary.Extension
     ( Has, Extension(extMiddleware)
     , Initializer', initializerBracket'