diff --git a/.github/workflows/aeson-typescript.yml b/.github/workflows/aeson-typescript.yml
index 9c63d79..e719130 100644
--- a/.github/workflows/aeson-typescript.yml
+++ b/.github/workflows/aeson-typescript.yml
@@ -18,6 +18,7 @@ jobs:
           - "9.2.8"
           - "9.4.7"
           - "9.6.3"
+          - "9.8.1"
 
     steps:
     - uses: actions/checkout@v2
@@ -71,7 +72,9 @@ jobs:
         - ghc: "9.4.7"
           yaml: "stack-9.4.7.yaml"
         - ghc: "9.6.3"
-          yaml: "stack.yaml"
+          yaml: "stack-9.6.3.yaml"
+        - ghc: "9.8.1"
+          yaml: "stack-9.8.1.yaml"
 
     steps:
     - uses: actions/checkout@v3
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 729808f..5cecaec 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+* GHC 9.8 support
+
 ## 0.6.2.0
 
 * Expose generic type constructors `T4` through `T10`. (We only exposed `T`, `T1`, `T2`, and `T3` before.)
diff --git a/src/Data/Aeson/TypeScript/Transform.hs b/src/Data/Aeson/TypeScript/Transform.hs
index f5494e1..7e02879 100644
--- a/src/Data/Aeson/TypeScript/Transform.hs
+++ b/src/Data/Aeson/TypeScript/Transform.hs
@@ -45,7 +45,9 @@ transformTypeFamilies eo@(ExtraTypeScriptOptions {..}) (AppT (ConT name) typ)
             name' <- lift $ newName (nameBase typeFamilyName <> "'")
 
             f <- lift $ newName "f"
-#if MIN_VERSION_template_haskell(2,17,0)
+#if MIN_VERSION_template_haskell(2,21,0)
+            let inst1 = DataD [] name' [PlainTV f BndrReq] Nothing [] []
+#elif MIN_VERSION_template_haskell(2,17,0)
             let inst1 = DataD [] name' [PlainTV f ()] Nothing [] []
 #else
             let inst1 = DataD [] name' [PlainTV f] Nothing [] []
diff --git a/stack-9.6.3.yaml b/stack-9.6.3.yaml
new file mode 100644
index 0000000..fa1a123
--- /dev/null
+++ b/stack-9.6.3.yaml
@@ -0,0 +1,5 @@
+
+resolver: lts-22.6
+
+packages:
+- .
diff --git a/stack-9.6.3.yaml.lock b/stack-9.6.3.yaml.lock
new file mode 100644
index 0000000..1b74b0a
--- /dev/null
+++ b/stack-9.6.3.yaml.lock
@@ -0,0 +1,12 @@
+# This file was autogenerated by Stack.
+# You should not edit this file by hand.
+# For more information, please see the documentation at:
+#   https://docs.haskellstack.org/en/stable/lock_files
+
+packages: []
+snapshots:
+- completed:
+    sha256: 1b4c2669e26fa828451830ed4725e4d406acc25a1fa24fcc039465dd13d7a575
+    size: 714100
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/22/6.yaml
+  original: lts-22.6
diff --git a/stack-9.8.1.yaml b/stack-9.8.1.yaml
new file mode 100644
index 0000000..2f1a36f
--- /dev/null
+++ b/stack-9.8.1.yaml
@@ -0,0 +1,5 @@
+
+resolver: nightly-2024-01-26
+
+packages:
+- .
diff --git a/stack-9.8.1.yaml.lock b/stack-9.8.1.yaml.lock
new file mode 100644
index 0000000..3f8e18f
--- /dev/null
+++ b/stack-9.8.1.yaml.lock
@@ -0,0 +1,12 @@
+# This file was autogenerated by Stack.
+# You should not edit this file by hand.
+# For more information, please see the documentation at:
+#   https://docs.haskellstack.org/en/stable/lock_files
+
+packages: []
+snapshots:
+- completed:
+    sha256: 876a5c75d90718add42e1ad36d66000bf35050ce1c66748119897a32df613186
+    size: 563963
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/nightly/2024/1/26.yaml
+  original: nightly-2024-01-26
diff --git a/stack.yaml b/stack.yaml
index bfc9a75..fa1a123 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,5 +1,5 @@
 
-resolver: nightly-2023-11-14
+resolver: lts-22.6
 
 packages:
 - .
diff --git a/stack.yaml.lock b/stack.yaml.lock
index dd4da80..1b74b0a 100644
--- a/stack.yaml.lock
+++ b/stack.yaml.lock
@@ -6,7 +6,7 @@
 packages: []
 snapshots:
 - completed:
-    sha256: 0eaacfc9de6b0ab46ab6026166d2ba7718ab06a8612086b3ee21d7667e682df0
-    size: 698974
-    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/nightly/2023/11/14.yaml
-  original: nightly-2023-11-14
+    sha256: 1b4c2669e26fa828451830ed4725e4d406acc25a1fa24fcc039465dd13d7a575
+    size: 714100
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/22/6.yaml
+  original: lts-22.6