diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index 335a8e6..862fa02 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: 0.19.20251118
+# version: 0.19.20260104
 #
-# REGENDATA ("0.19.20251118",["github","cabal.project","--config=cabal.haskell-ci"])
+# REGENDATA ("0.19.20260104",["github","cabal.project","--config=cabal.haskell-ci"])
 #
 name: Haskell-CI
 on:
@@ -41,10 +41,10 @@ jobs:
     strategy:
       matrix:
         include:
-          - compiler: ghc-9.14.0.20251104
+          - compiler: ghc-9.14.1
             compilerKind: ghc
-            compilerVersion: 9.14.0.20251104
-            setup-method: ghcup-prerelease
+            compilerVersion: 9.14.1
+            setup-method: ghcup
             allow-failure: false
           - compiler: ghc-9.12.2
             compilerKind: ghc
@@ -105,21 +105,6 @@ jobs:
           HCKIND: ${{ matrix.compilerKind }}
           HCNAME: ${{ matrix.compiler }}
           HCVER: ${{ matrix.compilerVersion }}
-      - name: Install GHC (GHCup prerelease)
-        if: matrix.setup-method == 'ghcup-prerelease'
-        run: |
-          "$HOME/.ghcup/bin/ghcup" config add-release-channel prereleases
-          "$HOME/.ghcup/bin/ghcup" install ghc "$HCVER" || (cat "$HOME"/.ghcup/logs/*.* && false)
-          HC=$("$HOME/.ghcup/bin/ghcup" whereis ghc "$HCVER")
-          HCPKG=$(echo "$HC" | sed 's#ghc$#ghc-pkg#')
-          HADDOCK=$(echo "$HC" | sed 's#ghc$#haddock#')
-          echo "HC=$HC" >> "$GITHUB_ENV"
-          echo "HCPKG=$HCPKG" >> "$GITHUB_ENV"
-          echo "HADDOCK=$HADDOCK" >> "$GITHUB_ENV"
-        env:
-          HCKIND: ${{ matrix.compilerKind }}
-          HCNAME: ${{ matrix.compiler }}
-          HCVER: ${{ matrix.compilerVersion }}
       - name: Set PATH and environment variables
         run: |
           echo "$HOME/.cabal/bin" >> $GITHUB_PATH
@@ -130,7 +115,7 @@ jobs:
           echo "HCNUMVER=$HCNUMVER" >> "$GITHUB_ENV"
           echo "ARG_TESTS=--enable-tests" >> "$GITHUB_ENV"
           echo "ARG_BENCH=--enable-benchmarks" >> "$GITHUB_ENV"
-          if [ $((HCNUMVER >= 91400)) -ne 0 ] ; then echo "HEADHACKAGE=true" >> "$GITHUB_ENV" ; else echo "HEADHACKAGE=false" >> "$GITHUB_ENV" ; fi
+          echo "HEADHACKAGE=false" >> "$GITHUB_ENV"
           echo "ARG_COMPILER=--$HCKIND --with-compiler=$HC" >> "$GITHUB_ENV"
         env:
           HCKIND: ${{ matrix.compilerKind }}
@@ -158,18 +143,6 @@ jobs:
           repository hackage.haskell.org
             url: http://hackage.haskell.org/
           EOF
-          if $HEADHACKAGE; then
-          cat >> $CABAL_CONFIG <<EOF
-          repository head.hackage.ghc.haskell.org
-             url: https://ghc.gitlab.haskell.org/head.hackage/
-             secure: True
-             root-keys: 7541f32a4ccca4f97aea3b22f5e593ba2c0267546016b992dfadcd2fe944e55d
-                        26021a13b401500c8eb2761ca95c61f2d625bfef951b939a8124ed12ecf07329
-                        f76d08be13e9a61a377a85e2fb63f4c5435d40f8feb3e12eb05905edb8cdea89
-             key-threshold: 3
-          active-repositories: hackage.haskell.org, head.hackage.ghc.haskell.org:override
-          EOF
-          fi
           cat >> $CABAL_CONFIG <<EOF
           program-default-options
             ghc-options: $GHCJOBS +RTS -M3G -RTS
@@ -199,8 +172,8 @@ jobs:
       - name: initial cabal.project for sdist
         run: |
           touch cabal.project
-          echo "packages: $GITHUB_WORKSPACE/source/consumers-metrics-prometheus" >> cabal.project
           echo "packages: $GITHUB_WORKSPACE/source/consumers" >> cabal.project
+          echo "packages: $GITHUB_WORKSPACE/source/consumers-metrics-prometheus" >> cabal.project
           cat cabal.project
       - name: sdist
         run: |
@@ -212,33 +185,37 @@ jobs:
           find sdist -maxdepth 1 -type f -name '*.tar.gz' -exec tar -C $GITHUB_WORKSPACE/unpacked -xzvf {} \;
       - name: generate cabal.project
         run: |
-          PKGDIR_consumers_metrics_prometheus="$(find "$GITHUB_WORKSPACE/unpacked" -maxdepth 1 -type d -regex '.*/consumers-metrics-prometheus-[0-9.]*')"
-          echo "PKGDIR_consumers_metrics_prometheus=${PKGDIR_consumers_metrics_prometheus}" >> "$GITHUB_ENV"
           PKGDIR_consumers="$(find "$GITHUB_WORKSPACE/unpacked" -maxdepth 1 -type d -regex '.*/consumers-[0-9.]*')"
           echo "PKGDIR_consumers=${PKGDIR_consumers}" >> "$GITHUB_ENV"
+          PKGDIR_consumers_metrics_prometheus="$(find "$GITHUB_WORKSPACE/unpacked" -maxdepth 1 -type d -regex '.*/consumers-metrics-prometheus-[0-9.]*')"
+          echo "PKGDIR_consumers_metrics_prometheus=${PKGDIR_consumers_metrics_prometheus}" >> "$GITHUB_ENV"
           rm -f cabal.project cabal.project.local
           touch cabal.project
           touch cabal.project.local
-          echo "packages: ${PKGDIR_consumers_metrics_prometheus}" >> cabal.project
           echo "packages: ${PKGDIR_consumers}" >> cabal.project
-          echo "package consumers-metrics-prometheus" >> cabal.project
-          echo "    ghc-options: -Werror=missing-methods -Werror=missing-fields" >> cabal.project
+          echo "packages: ${PKGDIR_consumers_metrics_prometheus}" >> cabal.project
           echo "package consumers" >> cabal.project
           echo "    ghc-options: -Werror=missing-methods -Werror=missing-fields" >> cabal.project
-          if [ $((HCNUMVER >= 90400)) -ne 0 ] ; then echo "package consumers-metrics-prometheus" >> cabal.project ; fi
-          if [ $((HCNUMVER >= 90400)) -ne 0 ] ; then echo "    ghc-options: -Werror=unused-packages" >> cabal.project ; fi
+          echo "package consumers-metrics-prometheus" >> cabal.project
+          echo "    ghc-options: -Werror=missing-methods -Werror=missing-fields" >> cabal.project
           if [ $((HCNUMVER >= 90400)) -ne 0 ] ; then echo "package consumers" >> cabal.project ; fi
           if [ $((HCNUMVER >= 90400)) -ne 0 ] ; then echo "    ghc-options: -Werror=unused-packages" >> cabal.project ; fi
-          echo "package consumers-metrics-prometheus" >> cabal.project
-          echo "    ghc-options: -Werror=incomplete-patterns -Werror=incomplete-uni-patterns" >> cabal.project
+          if [ $((HCNUMVER >= 90400)) -ne 0 ] ; then echo "package consumers-metrics-prometheus" >> cabal.project ; fi
+          if [ $((HCNUMVER >= 90400)) -ne 0 ] ; then echo "    ghc-options: -Werror=unused-packages" >> cabal.project ; fi
           echo "package consumers" >> cabal.project
           echo "    ghc-options: -Werror=incomplete-patterns -Werror=incomplete-uni-patterns" >> cabal.project
+          echo "package consumers-metrics-prometheus" >> cabal.project
+          echo "    ghc-options: -Werror=incomplete-patterns -Werror=incomplete-uni-patterns" >> cabal.project
           cat >> cabal.project <<EOF
+          constraints: data-sketches < 0.4
+          allow-newer: *:base
+          allow-newer: *:template-haskell
+          allow-newer: aeson:containers
+          allow-newer: aeson:indexed-traversable
+          allow-newer: aeson:semialign
+          allow-newer: aeson:time
+          allow-newer: indexed-traversable:containers
           EOF
-          if $HEADHACKAGE; then
-          echo "allow-newer: $($HCPKG list --simple-output | sed -E 's/([a-zA-Z-]+)-[0-9.]+/*:\1,/g')" >> cabal.project
-          fi
-          $HCPKG list --simple-output --names-only | perl -ne 'for (split /\s+/) { print "constraints: any.$_ installed\n" unless /^(consumers|consumers-metrics-prometheus)$/; }' >> cabal.project.local
           cat cabal.project
           cat cabal.project.local
       - name: dump install plan
@@ -266,10 +243,10 @@ jobs:
           $CABAL v2-test $ARG_COMPILER $ARG_TESTS $ARG_BENCH all --test-show-details=direct
       - name: cabal check
         run: |
-          cd ${PKGDIR_consumers_metrics_prometheus} || false
-          ${CABAL} -vnormal check
           cd ${PKGDIR_consumers} || false
           ${CABAL} -vnormal check
+          cd ${PKGDIR_consumers_metrics_prometheus} || false
+          ${CABAL} -vnormal check
       - name: haddock
         run: |
           $CABAL v2-haddock --disable-documentation --haddock-all $ARG_COMPILER --with-haddock $HADDOCK $ARG_TESTS $ARG_BENCH all
diff --git a/cabal.haskell-ci b/cabal.haskell-ci
index 2738278..4dada4a 100644
--- a/cabal.haskell-ci
+++ b/cabal.haskell-ci
@@ -2,3 +2,4 @@ branches:       master
 doctest:        False
 tests:          True
 postgresql:     True
+installed:      -all
diff --git a/cabal.project b/cabal.project
index f44a24c..a63b198 100644
--- a/cabal.project
+++ b/cabal.project
@@ -1 +1,14 @@
 packages: */*.cabal
+
+-- for prometheus-client
+constraints: data-sketches < 0.4
+
+-- GHC 9.14.1
+allow-newer:
+  , *:base
+  , *:template-haskell
+  , aeson:containers
+  , aeson:indexed-traversable
+  , aeson:semialign
+  , aeson:time
+  , indexed-traversable:containers