diff --git a/flake.lock b/flake.lock
index ffd911d..ef07f80 100644
--- a/flake.lock
+++ b/flake.lock
@@ -3,11 +3,11 @@
     "flake-compat": {
       "flake": false,
       "locked": {
-        "lastModified": 1696426674,
-        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
+        "lastModified": 1761588595,
+        "narHash": "sha256-XKUZz9zewJNUj46b4AJdiRZJAvSZ0Dqj2BNfXvFlJC4=",
         "owner": "edolstra",
         "repo": "flake-compat",
-        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
+        "rev": "f387cd2afec9419c8ee37694406ca490c3f34ee5",
         "type": "github"
       },
       "original": {
@@ -57,11 +57,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1736012469,
-        "narHash": "sha256-/qlNWm/IEVVH7GfgAIyP6EsVZI6zjAx1cV5zNyrs+rI=",
+        "lastModified": 1763966396,
+        "narHash": "sha256-6eeL1YPcY1MV3DDStIDIdy/zZCDKgHdkCmsrLJFiZf0=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "8f3e1f807051e32d8c95cd12b9b421623850a34d",
+        "rev": "5ae3b07d8d6527c42f17c876e404993199144b6a",
         "type": "github"
       },
       "original": {
@@ -80,11 +80,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1735882644,
-        "narHash": "sha256-3FZAG+pGt3OElQjesCAWeMkQ7C/nB1oTHLRQ8ceP110=",
+        "lastModified": 1763988335,
+        "narHash": "sha256-QlcnByMc8KBjpU37rbq5iP7Cp97HvjRP0ucfdh+M4Qc=",
         "owner": "cachix",
         "repo": "pre-commit-hooks.nix",
-        "rev": "a5a961387e75ae44cc20f0a57ae463da5e959656",
+        "rev": "50b9238891e388c9fdc6a5c49e49c42533a1b5ce",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 907df4b..e93636b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -16,7 +16,7 @@
 
   outputs = { self, nixpkgs, flake-utils, pre-commit-hooks }:
     let
-      ghcVer = "ghc96";
+      ghcVer = "ghc910";
       makeHaskellOverlay = overlay: final: prev: {
         haskell = prev.haskell // {
           packages = prev.haskell.packages // {
diff --git a/slack-web.cabal b/slack-web.cabal
index e32e344..290092b 100644
--- a/slack-web.cabal
+++ b/slack-web.cabal
@@ -153,7 +153,7 @@ library
     , classy-prelude
     , containers
     , crypton
-    , data-default-class
+    , data-default
     , deepseq
     , either
     , errors
diff --git a/src/Web/Slack/Internal.hs b/src/Web/Slack/Internal.hs
index 579f50f..33ea3b8 100644
--- a/src/Web/Slack/Internal.hs
+++ b/src/Web/Slack/Internal.hs
@@ -1,3 +1,5 @@
+{-# OPTIONS_GHC -Wno-orphans #-}
+
 -- | Internal things in slack-web. May be changed arbitrarily!
 module Web.Slack.Internal where
 
diff --git a/src/Web/Slack/Prelude.hs b/src/Web/Slack/Prelude.hs
index d1d4c47..ceef7e1 100644
--- a/src/Web/Slack/Prelude.hs
+++ b/src/Web/Slack/Prelude.hs
@@ -12,7 +12,7 @@ module Web.Slack.Prelude (
 import ClassyPrelude hiding (link)
 import Data.Aeson (FromJSON (..), ToJSON (..), object, withObject, (.:), (.:?), (.=))
 import Data.Aeson.TH (deriveFromJSON, deriveJSON, deriveToJSON)
-import Data.Default.Class (Default (..))
+import Data.Default (Default (..))
 import Data.List.NonEmpty (NonEmpty (..))
 import Data.Proxy (Proxy (..))
 import Data.String.Conversions (cs)