diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index 22eb64f..40a064f 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -8,9 +8,9 @@
 #
 # For more information, see https://github.com/haskell-CI/haskell-ci
 #
-# version: 0.19.20250605
+# version: 0.19.20260331
 #
-# REGENDATA ("0.19.20250605",["github","cabal.project"])
+# REGENDATA ("0.19.20260331",["github","cabal.project"])
 #
 name: Haskell-CI
 on:
@@ -20,6 +20,11 @@ on:
   pull_request:
     branches:
       - master
+  merge_group:
+    branches:
+      - master
+  workflow_dispatch:
+    {}
 jobs:
   linux:
     name: Haskell-CI - Linux - ${{ matrix.compiler }}
@@ -32,14 +37,19 @@ jobs:
     strategy:
       matrix:
         include:
-          - compiler: ghc-9.12.2
+          - compiler: ghc-9.14.1
+            compilerKind: ghc
+            compilerVersion: 9.14.1
+            setup-method: ghcup
+            allow-failure: false
+          - compiler: ghc-9.12.4
             compilerKind: ghc
-            compilerVersion: 9.12.2
+            compilerVersion: 9.12.4
             setup-method: ghcup
             allow-failure: false
-          - compiler: ghc-9.10.2
+          - compiler: ghc-9.10.3
             compilerKind: ghc
-            compilerVersion: 9.10.2
+            compilerVersion: 9.10.3
             setup-method: ghcup
             allow-failure: false
           - compiler: ghc-9.8.4
@@ -95,8 +105,8 @@ jobs:
           chmod a+x "$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: |
@@ -172,7 +182,7 @@ 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
@@ -197,7 +207,11 @@ jobs:
           touch cabal.project.local
           echo "packages: ${PKGDIR_parsec}" >> cabal.project
           echo "package parsec" >> 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 parsec" >> cabal.project ; fi
+          if [ $((HCNUMVER >= 90400)) -ne 0 ] ; then echo "    ghc-options: -Werror=unused-packages" >> cabal.project ; fi
+          if [ $((HCNUMVER >= 90000)) -ne 0 ] ; then echo "package parsec" >> cabal.project ; fi
+          if [ $((HCNUMVER >= 90000)) -ne 0 ] ; then echo "    ghc-options: -Werror=incomplete-patterns -Werror=incomplete-uni-patterns" >> cabal.project ; fi
           cat >> cabal.project <<EOF
           EOF
           $HCPKG list --simple-output --names-only | perl -ne 'for (split /\s+/) { print "constraints: any.$_ installed\n" unless /^(parsec)$/; }' >> cabal.project.local
diff --git a/parsec.cabal b/parsec.cabal
index bada24c..42634c8 100644
--- a/parsec.cabal
+++ b/parsec.cabal
@@ -1,6 +1,7 @@
 cabal-version:      1.12
 name:               parsec
 version:            3.1.18.0
+x-revision:         1
 synopsis:           Monadic parser combinators
 description:
   Parsec is designed from scratch as an industrial-strength parser
@@ -38,8 +39,9 @@ tested-with:
    || ==9.4.8
    || ==9.6.7
    || ==9.8.4
-   || ==9.10.2
-   || ==9.12.2
+   || ==9.10.3
+   || ==9.12.4
+   || ==9.14.1
 
 extra-source-files:
   ChangeLog.md
@@ -79,7 +81,7 @@ library
     Text.ParserCombinators.Parsec.Token
 
   build-depends:
-      base        >=4.12.0.0 && <4.22
+      base        >=4.12.0.0 && <4.23
     , bytestring  >=0.10.8.2 && <0.13
     , mtl         >=2.2.2    && <2.4
     , text        >=1.2.3.0  && <1.3  || >=2.0 && <2.2