diff --git a/internal/Policy/Subscription/Store.hs b/internal/Policy/Subscription/Store.hs
--- a/internal/Policy/Subscription/Store.hs
+++ b/internal/Policy/Subscription/Store.hs
@@ -34,10 +34,10 @@
 import           Types.Msg              (SID)
 
 data SubscriptionState = SubscriptionState
-                           { subscriptionCallbacks :: Map.Map SID SubscriptionCallback
-                           , subscriptionExpiryHeap :: Heap.MinHeap (UTCTime, SID)
-                           , subscriptionTrackedExpiries :: Map.Map SID UTCTime
-                           , subscriptionMeta :: Map.Map SID SubscriptionMeta
+                           { subscriptionCallbacks :: !(Map.Map SID SubscriptionCallback)
+                           , subscriptionExpiryHeap :: !(Heap.MinHeap (UTCTime, SID))
+                           , subscriptionTrackedExpiries :: !(Map.Map SID UTCTime)
+                           , subscriptionMeta :: !(Map.Map SID SubscriptionMeta)
                            }
 
 data SubscriptionCallback = SubscriptionCallback
diff --git a/natskell.cabal b/natskell.cabal
--- a/natskell.cabal
+++ b/natskell.cabal
@@ -1,6 +1,6 @@
 cabal-version:          3.0
 name:                   natskell
-version:                1.1.0.0
+version:                1.1.0.1
 synopsis:               A NATS client library written in Haskell
 tested-with:
   GHC ==8.8,