diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index bef6837..1bfa177 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -8,14 +8,15 @@
 #
 # For more information, see https://github.com/haskell-CI/haskell-ci
 #
-# version: 0.19.20250605
+# version: 0.19.20260104
 #
-# REGENDATA ("0.19.20250605",["github","cabal.project"])
+# REGENDATA ("0.19.20260104",["github","cabal.project"])
 #
 name: Haskell-CI
 on:
   - push
   - pull_request
+  - merge_group
 jobs:
   linux:
     name: Haskell-CI - Linux - ${{ matrix.compiler }}
@@ -28,14 +29,19 @@ jobs:
     strategy:
       matrix:
         include:
+          - compiler: ghc-9.14.1
+            compilerKind: ghc
+            compilerVersion: 9.14.1
+            setup-method: ghcup
+            allow-failure: false
           - compiler: ghc-9.12.2
             compilerKind: ghc
             compilerVersion: 9.12.2
             setup-method: ghcup
             allow-failure: false
-          - compiler: ghc-9.10.2
+          - compiler: ghc-9.10.3
             compilerKind: ghc
-            compilerVersion: 9.10.2
+            compilerVersion: 9.10.3
             setup-method: ghcup
             allow-failure: false
           - compiler: ghc-9.8.4
@@ -76,8 +82,8 @@ jobs:
           chmod a+x "$HOME/.ghcup/bin/ghcup"
       - name: Install cabal-install
         run: |
-          "$HOME/.ghcup/bin/ghcup" install cabal 3.14.2.0 || (cat "$HOME"/.ghcup/logs/*.* && false)
-          echo "CABAL=$HOME/.ghcup/bin/cabal-3.14.2.0 -vnormal+nowrap" >> "$GITHUB_ENV"
+          "$HOME/.ghcup/bin/ghcup" install cabal 3.16.0.0 || (cat "$HOME"/.ghcup/logs/*.* && false)
+          echo "CABAL=$HOME/.ghcup/bin/cabal-3.16.0.0 -vnormal+nowrap" >> "$GITHUB_ENV"
       - name: Install GHC (GHCup)
         if: matrix.setup-method == 'ghcup'
         run: |
@@ -153,7 +159,7 @@ jobs:
           chmod a+x $HOME/.cabal/bin/cabal-plan
           cabal-plan --version
       - name: checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           path: source
       - name: initial cabal.project for sdist
@@ -178,7 +184,11 @@ jobs:
           touch cabal.project.local
           echo "packages: ${PKGDIR_hiedb}" >> cabal.project
           echo "package hiedb" >> cabal.project
-          echo "    ghc-options: -Werror=missing-methods" >> cabal.project
+          echo "    ghc-options: -Werror=missing-methods -Werror=missing-fields" >> cabal.project
+          if [ $((HCNUMVER >= 90400)) -ne 0 ] ; then echo "package hiedb" >> cabal.project ; fi
+          if [ $((HCNUMVER >= 90400)) -ne 0 ] ; then echo "    ghc-options: -Werror=unused-packages" >> cabal.project ; fi
+          echo "package hiedb" >> cabal.project
+          echo "    ghc-options: -Werror=incomplete-patterns -Werror=incomplete-uni-patterns" >> cabal.project
           cat >> cabal.project <<EOF
           allow-newer: hie-compat:base
           EOF
diff --git a/cabal.project b/cabal.project
index 2e6d125..6434111 100644
--- a/cabal.project
+++ b/cabal.project
@@ -1,3 +1,2 @@
 packages: .
 allow-newer: hie-compat:base
-
diff --git a/hiedb.cabal b/hiedb.cabal
index b7b50d6..82d0c77 100644
--- a/hiedb.cabal
+++ b/hiedb.cabal
@@ -1,6 +1,6 @@
 cabal-version:       2.4
 name:                hiedb
-version:             0.7.0.0
+version:             0.8.0.0
 synopsis:            Generates a references DB from .hie files
 description:         Tool and library to index and query a collection of `.hie` files
 bug-reports:         https://github.com/wz1000/HieDb/issues
@@ -21,8 +21,9 @@ tested-with:         GHC ==9.0.2
                       || ==9.4.8
                       || ==9.6.7
                       || ==9.8.4
-                      || ==9.10.2
+                      || ==9.10.3
                       || ==9.12.2
+                      || ==9.14.1
 
 source-repository head
   type: git
@@ -30,7 +31,7 @@ source-repository head
 
 common common-options
   default-language:    Haskell2010
-  build-depends:       base >= 4.12 && < 4.22
+  build-depends:       base >= 4.12 && < 4.23
   ghc-options:         -Wall
                        -Wcompat
                        -Widentities
@@ -61,7 +62,7 @@ library
                        HieDb.Dump,
                        HieDb.Html,
                        HieDb.Run
-  build-depends:       ghc >= 8.6 && < 9.13
+  build-depends:       ghc >= 8.6 && < 9.15
                      , array
                      , containers
                      , filepath
diff --git a/test/Main.hs b/test/Main.hs
index ccfa62e..03d8936 100644
--- a/test/Main.hs
+++ b/test/Main.hs
@@ -241,7 +241,11 @@ cliSpec =
             [ "Span: test/data/Module1.hs:10:8-10"
             , "Constructors: {(HsVar, HsExpr)}"
             , "Identifiers:"
+#if MIN_VERSION_base(4,22,0)
+            , "Symbol:v:not:GHC.Internal.Classes:ghc-internal"
+#else
             , "Symbol:v:not:GHC.Classes:ghc-prim"
+#endif
             , "not defined at <no location info>"
             , "    Details:  Just Bool -> Bool {usage}"
             , "Types:"