diff --git a/changelog.md b/changelog.md
--- a/changelog.md
+++ b/changelog.md
@@ -27,3 +27,9 @@
 ## 1.1 - 2021-06-05
 
 Generalize `ScottyM` to `ScottyT`
+
+## 1.1.0.1 - 2021-11-16
+
+Support `aeson` 2.0, drop support for previous versions
+
+Drop support for `scotty` 0.11. Now 0.12 is required.
diff --git a/library/Stripe/Scotty.hs b/library/Stripe/Scotty.hs
--- a/library/Stripe/Scotty.hs
+++ b/library/Stripe/Scotty.hs
@@ -16,6 +16,8 @@
 
 -- aeson
 import qualified Data.Aeson
+import qualified Data.Aeson.Key
+import qualified Data.Aeson.KeyMap
 
 -- base
 import Control.Monad (when, (>=>))
@@ -42,9 +44,6 @@
 import qualified Data.Text.Lazy
 import qualified Data.Text.Lazy.Builder
 
--- unordered-containers
-import qualified Data.HashMap.Strict
-
 {- | Terminates request processing if the request does not contain a valid
 Stripe signature header.
 
@@ -193,7 +192,7 @@
 -- Internal Aeson decoding functions
 
 aesonAttr :: String -> Data.Aeson.Value -> Maybe Data.Aeson.Value
-aesonAttr x = aesonObject >=> Data.HashMap.Strict.lookup (Data.Text.pack x)
+aesonAttr x = aesonObject >=> Data.Aeson.KeyMap.lookup (Data.Aeson.Key.fromString x)
 
 aesonObject :: Data.Aeson.Value -> Maybe Data.Aeson.Object
 aesonObject (Data.Aeson.Object x) = Just x
diff --git a/stripe-scotty.cabal b/stripe-scotty.cabal
--- a/stripe-scotty.cabal
+++ b/stripe-scotty.cabal
@@ -1,7 +1,7 @@
 cabal-version: 2.0
 
 name: stripe-scotty
-version: 1.1
+version: 1.1.0.1
 
 synopsis: Listen for Stripe webhook events with Scotty
 category: Web
@@ -22,8 +22,6 @@
 license-file: license.txt
 
 build-type: Simple
-tested-with: GHC==8.2.2, GHC==8.4.4, GHC==8.6.3, GHC==8.8.1, GHC==8.10.1,
-             GHC==9.0.1
 
 extra-source-files:
     changelog.md
@@ -36,13 +34,12 @@
         Stripe.Scotty
 
     build-depends:
-        aeson ^>= 1.4 || ^>= 1.5
+        aeson ^>= 2.0
       , base ^>= 4.10 || ^>= 4.11 || ^>= 4.12 || ^>= 4.13 || ^>= 4.14
           || ^>= 4.15
       , bytestring ^>= 0.10 || ^>= 0.11
       , http-types ^>= 0.12
-      , scotty ^>= 0.11 || ^>= 0.12
+      , scotty ^>= 0.12
       , stripe-concepts ^>= 1.0
       , stripe-signature ^>= 1.0
       , text ^>= 1.2
-      , unordered-containers ^>= 0.2