diff --git a/lib/Polysemy/Log/Colog/Colog.hs b/lib/Polysemy/Log/Colog/Colog.hs
--- a/lib/Polysemy/Log/Colog/Colog.hs
+++ b/lib/Polysemy/Log/Colog/Colog.hs
@@ -6,6 +6,7 @@
 import Colog.Polysemy (runLogAction)
 import Polysemy (interpretH, runT)
 import Polysemy.Async (Async)
+import Polysemy.Conc (Race)
 import Polysemy.Internal (InterpretersFor)
 import Polysemy.Internal.Tactics (liftT)
 import Polysemy.Resource (Resource)
@@ -131,7 +132,7 @@
 
 -- |Like 'interpretLogStdout', but process messages concurrently.
 interpretLogStdoutConc ::
-  Members [Resource, Async, Embed IO] r =>
+  Members [Resource, Async, Race, Embed IO] r =>
   InterpreterFor Log r
 interpretLogStdoutConc =
   interpretCologStdout @IO .
@@ -176,7 +177,7 @@
 
 -- |Interpret 'Log' fully in terms of 'Colog.Log', using /co-log/'s message protocol and stdout.
 interpretLogStdoutAsNativeConc ::
-  Members [Resource, Async, Embed IO] r =>
+  Members [Resource, Async, Race, Embed IO] r =>
   InterpretersFor [Log, Colog.Log Colog.Message] r
 interpretLogStdoutAsNativeConc =
   interpretCologStdoutNative @IO .
diff --git a/polysemy-log-co.cabal b/polysemy-log-co.cabal
--- a/polysemy-log-co.cabal
+++ b/polysemy-log-co.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           polysemy-log-co
-version:        0.2.0.0
+version:        0.2.0.1
 synopsis:       polysemy-log interpreter for co-log
 description:    See <https://hackage.haskell.org/package/polysemy-log-co/docs/Polysemy-Log-Colog.html>
 category:       Logging
@@ -101,7 +101,8 @@
     , co-log >=0.4.0.1 && <0.5
     , co-log-core >=0.2.1 && <0.3
     , co-log-polysemy >=0.0.1.2 && <0.1
-    , polysemy >=1.3 && <1.5
+    , polysemy >=1.3 && <1.6
+    , polysemy-conc >=0.1.0.0 && <0.2
     , polysemy-log
     , polysemy-time >=0.1.1.0 && <0.2
     , relude >=0.5 && <0.8
@@ -188,7 +189,8 @@
     , co-log-core >=0.2.1 && <0.3
     , co-log-polysemy >=0.0.1.2 && <0.1
     , hedgehog
-    , polysemy >=1.3 && <1.5
+    , polysemy >=1.3 && <1.6
+    , polysemy-conc >=0.1.0.0 && <0.2
     , polysemy-log
     , polysemy-log-co
     , polysemy-test