diff --git a/src/Quasar/Observable.hs b/src/Quasar/Observable.hs
index 37a0bc84a996b1ba164ce47dc3058e7e8fcf90d5..7e5af38e2ea99553045d3603b5443decb74de3da 100644
--- a/src/Quasar/Observable.hs
+++ b/src/Quasar/Observable.hs
@@ -32,7 +32,6 @@ import Control.Concurrent.MVar
 import Control.Concurrent.STM
 import Control.Monad.Catch
 import Control.Monad.Except
-import Control.Monad.Reader
 import Control.Monad.Trans.Maybe
 import Data.HashMap.Strict qualified as HM
 import Data.IORef