diff --git a/incipit.cabal b/incipit.cabal
--- a/incipit.cabal
+++ b/incipit.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           incipit
-version:        0.3.1.0
+version:        0.4.0.0
 synopsis:       A Prelude for Polysemy
 description:    See https://hackage.haskell.org/package/incipit/docs/Incipit.html
 category:       Prelude
@@ -133,7 +133,7 @@
   build-depends:
       base >=4.13 && <4.17
     , incipit-core >=0.3
-    , polysemy-conc >=0.9
+    , polysemy-conc >=0.10
     , polysemy-log >=0.7.2.0
     , polysemy-resume >=0.5
     , polysemy-time >=0.5