diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+### 0.1.5 [2024.03.19]
+* Support building with `template-haskell-2.22.*` (GHC 9.10).
+
 ### 0.1.4 [2022.07.23]
 * Backport the `getPackageRoot` and `makeRelativeToProject` functions
   introduced in `template-haskell-2.19.0.0` (GHC 9.4).
diff --git a/src/Language/Haskell/TH/Syntax/Compat.hs b/src/Language/Haskell/TH/Syntax/Compat.hs
--- a/src/Language/Haskell/TH/Syntax/Compat.hs
+++ b/src/Language/Haskell/TH/Syntax/Compat.hs
@@ -756,7 +756,9 @@
 -- differ between @template-haskell@ versions as well.
 --
 -- Levity-polymorphic since /template-haskell-2.16.0.0/.
-# if MIN_VERSION_template_haskell(2,17,0)
+# if MIN_VERSION_template_haskell(2,22,0)
+type Splice  = Code :: ((* -> *) -> forall r. TYPE r -> *)
+# elif MIN_VERSION_template_haskell(2,17,0)
 type Splice  = Code :: (forall r. (* -> *) -> TYPE r -> *)
 # elif MIN_VERSION_template_haskell(2,16,0)
 type Splice m (a :: TYPE r) = m (Syntax.TExp a)
diff --git a/th-compat.cabal b/th-compat.cabal
--- a/th-compat.cabal
+++ b/th-compat.cabal
@@ -1,6 +1,6 @@
 cabal-version:       >=1.10
 name:                th-compat
-version:             0.1.4
+version:             0.1.5
 synopsis:            Backward- (and forward-)compatible Quote and Code types
 description:         This package defines a "Language.Haskell.TH.Syntax.Compat"
                      module, which backports the @Quote@ and @Code@ types to
@@ -33,8 +33,11 @@
                    , GHC == 8.8.4
                    , GHC == 8.10.7
                    , GHC == 9.0.2
-                   , GHC == 9.2.3
-                   , GHC == 9.4.1
+                   , GHC == 9.2.8
+                   , GHC == 9.4.8
+                   , GHC == 9.6.4
+                   , GHC == 9.8.2
+                   , GHC == 9.10.1
 extra-source-files:  CHANGELOG.md, README.md
 
 source-repository head
@@ -44,12 +47,12 @@
 library
   exposed-modules:     Language.Haskell.TH.Syntax.Compat
   build-depends:       base             >= 4.3 && < 5
-                     , template-haskell >= 2.5 && < 2.20
+                     , template-haskell >= 2.5 && < 2.22
   if !impl(ghc >= 8.0)
     build-depends:     fail             == 4.9.*
                      , transformers     >= 0.2 && < 0.7
   if !impl(ghc >= 9.4)
-    build-depends:     filepath         >= 1.2.0.0 && < 1.5
+    build-depends:     filepath         >= 1.2.0.0 && < 1.6
                      , directory        >= 1.1.0.0 && < 1.4
   hs-source-dirs:      src
   default-language:    Haskell2010
@@ -63,10 +66,10 @@
   other-modules:       Language.Haskell.TH.Syntax.CompatSpec
                        Types
   build-depends:       base             >= 4.3 && < 5
-                     , base-compat      >= 0.6 && < 0.13
+                     , base-compat      >= 0.6 && < 0.14
                      , hspec            >= 2   && < 3
                      , mtl              >= 2.1 && < 2.4
-                     , template-haskell >= 2.5 && < 2.20
+                     , template-haskell >= 2.5 && < 2.22
                      , th-compat
   build-tool-depends:  hspec-discover:hspec-discover >= 2
   hs-source-dirs:      tests