diff --git a/.travis.yml b/.travis.yml
index 9f1c2b3..b28fa71 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,10 +1,10 @@
 # This Travis job script has been generated by a script via
 #
-#   haskell-ci '--branches' 'master' '-o' '.travis.yml' 'servant-quickcheck.cabal'
+#   haskell-ci '--config=cabal.haskell-ci' 'servant-quickcheck.cabal'
 #
 # For more information, see https://github.com/haskell-CI/haskell-ci
 #
-# version: 0.3.20190413
+# version: 0.5.20190908
 #
 language: c
 dist: xenial
@@ -29,23 +29,27 @@ before_cache:
   - rm -rfv $CABALHOME/packages/head.hackage
 matrix:
   include:
-    - compiler: ghc-8.6.4
-      addons: {"apt":{"sources":["hvr-ghc"],"packages":["ghc-8.6.4","cabal-install-2.4"]}}
+    - compiler: ghc-8.8.1
+      addons: {"apt":{"sources":["hvr-ghc"],"packages":["ghc-8.8.1","cabal-install-3.0"]}}
+    - compiler: ghc-8.6.5
+      addons: {"apt":{"sources":["hvr-ghc"],"packages":["ghc-8.6.5","cabal-install-3.0"]}}
     - compiler: ghc-8.4.4
-      addons: {"apt":{"sources":["hvr-ghc"],"packages":["ghc-8.4.4","cabal-install-2.4"]}}
+      addons: {"apt":{"sources":["hvr-ghc"],"packages":["ghc-8.4.4","cabal-install-3.0"]}}
     - compiler: ghc-8.2.2
-      addons: {"apt":{"sources":["hvr-ghc"],"packages":["ghc-8.2.2","cabal-install-2.4"]}}
+      addons: {"apt":{"sources":["hvr-ghc"],"packages":["ghc-8.2.2","cabal-install-3.0"]}}
     - compiler: ghc-8.0.2
-      addons: {"apt":{"sources":["hvr-ghc"],"packages":["ghc-8.0.2","cabal-install-2.4"]}}
+      addons: {"apt":{"sources":["hvr-ghc"],"packages":["ghc-8.0.2","cabal-install-3.0"]}}
 before_install:
   - HC=$(echo "/opt/$CC/bin/ghc" | sed 's/-/\//')
+  - WITHCOMPILER="-w $HC"
+  - HADDOCK=$(echo "/opt/$CC/bin/haddock" | sed 's/-/\//')
   - HCPKG="$HC-pkg"
   - unset CC
   - CABAL=/opt/ghc/bin/cabal
   - CABALHOME=$HOME/.cabal
   - export PATH="$CABALHOME/bin:$PATH"
   - TOP=$(pwd)
-  - HCNUMVER=$(( $(${HC} --numeric-version|sed -E 's/([0-9]+)\.([0-9]+)\.([0-9]+).*/\1 * 10000 + \2 * 100 + \3/') ))
+  - "HCNUMVER=$(${HC} --numeric-version|perl -ne '/^(\\d+)\\.(\\d+)\\.(\\d+)(\\.(\\d+))?$/; print(10000 * $1 + 100 * $2 + ($3 == 0 ? $5 != 1 : $3))')"
   - echo $HCNUMVER
   - CABAL="$CABAL -vnormal+nowrap+markoutput"
   - set -o pipefail
@@ -72,22 +76,27 @@ install:
   - echo "$(${HC} --version) [$(${HC} --print-project-git-commit-id 2> /dev/null || echo '?')]"
   - TEST=--enable-tests
   - BENCH=--enable-benchmarks
-  - GHCHEAD=${GHCHEAD-false}
+  - HEADHACKAGE=false
   - rm -f $CABALHOME/config
   - |
     echo "verbose: normal +nowrap +markoutput"          >> $CABALHOME/config
     echo "remote-build-reporting: anonymous"            >> $CABALHOME/config
+    echo "write-ghc-environment-files: always"          >> $CABALHOME/config
     echo "remote-repo-cache: $CABALHOME/packages"       >> $CABALHOME/config
     echo "logs-dir:          $CABALHOME/logs"           >> $CABALHOME/config
     echo "world-file:        $CABALHOME/world"          >> $CABALHOME/config
     echo "extra-prog-path:   $CABALHOME/bin"            >> $CABALHOME/config
     echo "symlink-bindir:    $CABALHOME/bin"            >> $CABALHOME/config
+    echo "installdir:        $CABALHOME/bin"            >> $CABALHOME/config
     echo "build-summary:     $CABALHOME/logs/build.log" >> $CABALHOME/config
     echo "store-dir:         $CABALHOME/store"          >> $CABALHOME/config
     echo "install-dirs user"                            >> $CABALHOME/config
     echo "  prefix: $CABALHOME"                         >> $CABALHOME/config
     echo "repository hackage.haskell.org"               >> $CABALHOME/config
     echo "  url: http://hackage.haskell.org/"           >> $CABALHOME/config
+  - |
+    echo "program-default-options"                >> $CABALHOME/config
+    echo "  ghc-options: $GHCJOBS +RTS -M6G -RTS" >> $CABALHOME/config
   - cat $CABALHOME/config
   - rm -fv cabal.project cabal.project.local cabal.project.freeze
   - travis_retry ${CABAL} v2-update -v
@@ -95,18 +104,17 @@ install:
   - rm -rf cabal.project cabal.project.local cabal.project.freeze
   - touch cabal.project
   - |
-    echo 'packages: "."' >> cabal.project
+    echo "packages: ." >> cabal.project
   - |
-    echo "write-ghc-environment-files: always" >> cabal.project
-  - "for pkg in $($HCPKG list --simple-output); do echo $pkg | sed 's/-[^-]*$//' | grep -vE -- '^(servant-quickcheck)$' | sed 's/^/constraints: /' | sed 's/$/ installed/' >> cabal.project.local; done"
+  - "for pkg in $($HCPKG list --simple-output); do echo $pkg | sed 's/-[^-]*$//' | (grep -vE -- '^(servant-quickcheck)$' || true) | sed 's/^/constraints: /' | sed 's/$/ installed/' >> cabal.project.local; done"
   - cat cabal.project || true
   - cat cabal.project.local || true
   - if [ -f "./configure.ac" ]; then (cd "." && autoreconf -i); fi
-  - ${CABAL} v2-freeze -w ${HC} ${TEST} ${BENCH} | color_cabal_output
+  - ${CABAL} v2-freeze $WITHCOMPILER ${TEST} ${BENCH} | color_cabal_output
   - "cat cabal.project.freeze | sed -E 's/^(constraints: *| *)//' | sed 's/any.//'"
   - rm  cabal.project.freeze
-  - ${CABAL} v2-build -w ${HC} ${TEST} ${BENCH} --dep -j2 all | color_cabal_output
-  - ${CABAL} v2-build -w ${HC} --disable-tests --disable-benchmarks --dep -j2 all | color_cabal_output
+  - ${CABAL} v2-build $WITHCOMPILER ${TEST} ${BENCH} --dep -j2 all | color_cabal_output
+  - ${CABAL} v2-build $WITHCOMPILER --disable-tests --disable-benchmarks --dep -j2 all | color_cabal_output
 script:
   - DISTDIR=$(mktemp -d /tmp/dist-test.XXXX)
   # Packaging...
@@ -114,32 +122,39 @@ script:
   # Unpacking...
   - mv dist-newstyle/sdist/*.tar.gz ${DISTDIR}/
   - cd ${DISTDIR} || false
-  - find . -maxdepth 1 -name '*.tar.gz' -exec tar -xvf '{}' \;
+  - find . -maxdepth 1 -type f -name '*.tar.gz' -exec tar -xvf '{}' \;
+  - find . -maxdepth 1 -type f -name '*.tar.gz' -exec rm       '{}' \;
+  - PKGDIR_servant_quickcheck="$(find . -maxdepth 1 -type d -regex '.*/servant-quickcheck-[0-9.]*')"
   # Generate cabal.project
   - rm -rf cabal.project cabal.project.local cabal.project.freeze
   - touch cabal.project
   - |
-    echo 'packages: "servant-quickcheck-*/*.cabal"' >> cabal.project
+    echo "packages: ${PKGDIR_servant_quickcheck}" >> cabal.project
   - |
-    echo "write-ghc-environment-files: always" >> cabal.project
-  - "for pkg in $($HCPKG list --simple-output); do echo $pkg | sed 's/-[^-]*$//' | grep -vE -- '^(servant-quickcheck)$' | sed 's/^/constraints: /' | sed 's/$/ installed/' >> cabal.project.local; done"
+  - "for pkg in $($HCPKG list --simple-output); do echo $pkg | sed 's/-[^-]*$//' | (grep -vE -- '^(servant-quickcheck)$' || true) | sed 's/^/constraints: /' | sed 's/$/ installed/' >> cabal.project.local; done"
   - cat cabal.project || true
   - cat cabal.project.local || true
   # Building...
   # this builds all libraries and executables (without tests/benchmarks)
-  - ${CABAL} v2-build -w ${HC} --disable-tests --disable-benchmarks all | color_cabal_output
+  - ${CABAL} v2-build $WITHCOMPILER --disable-tests --disable-benchmarks all | color_cabal_output
   # Building with tests and benchmarks...
   # build & run tests, build benchmarks
-  - ${CABAL} v2-build -w ${HC} ${TEST} ${BENCH} all | color_cabal_output
+  - ${CABAL} v2-build $WITHCOMPILER ${TEST} ${BENCH} all | color_cabal_output
   # Testing...
-  - ${CABAL} v2-test -w ${HC} ${TEST} ${BENCH} all | color_cabal_output
+  - ${CABAL} v2-test $WITHCOMPILER ${TEST} ${BENCH} all | color_cabal_output
   # cabal check...
-  - (cd servant-quickcheck-* && ${CABAL} -vnormal check)
+  - (cd ${PKGDIR_servant_quickcheck} && ${CABAL} -vnormal check)
   # haddock...
-  - ${CABAL} v2-haddock -w ${HC} ${TEST} ${BENCH} all | color_cabal_output
+  - ${CABAL} v2-haddock $WITHCOMPILER --with-haddock $HADDOCK ${TEST} ${BENCH} all | color_cabal_output
   # Building without installed constraints for packages in global-db...
   - rm -f cabal.project.local
-  - ${CABAL} v2-build -w ${HC} --disable-tests --disable-benchmarks all | color_cabal_output
+  - ${CABAL} v2-build $WITHCOMPILER --disable-tests --disable-benchmarks all | color_cabal_output
+  # Constraint sets
+  - rm -rf cabal.project.local
+  # Constraint set base-compat-0.10
+  - ${CABAL} v2-build $WITHCOMPILER --disable-tests --disable-benchmarks --constraint='base-compat ==0.10.*' all | color_cabal_output
+  # Constraint set base-compat-0.11
+  - ${CABAL} v2-build $WITHCOMPILER --disable-tests --disable-benchmarks --constraint='base-compat ==0.11.*' all | color_cabal_output
 
-# REGENDATA ["--branches","master","-o",".travis.yml","servant-quickcheck.cabal"]
+# REGENDATA ["--config=cabal.haskell-ci","servant-quickcheck.cabal"]
 # EOF
diff --git a/CHANGELOG.yaml b/CHANGELOG.yaml
index 786ca24..d3488ca 100644
--- a/CHANGELOG.yaml
+++ b/CHANGELOG.yaml
@@ -1,5 +1,11 @@
 releases:
 
+  - version: "0.8"
+    changes:
+      - description: Support GHC-8.8. Allow newer versions of other dependencies.
+        authors: phadej
+        date: 2019-09-15
+
   - version: "0.0.7.3"
     changes:
       - description: Support for servant-0.14
diff --git a/cabal.haskell-ci b/cabal.haskell-ci
new file mode 100644
index 0000000..f9157cc
--- /dev/null
+++ b/cabal.haskell-ci
@@ -0,0 +1,7 @@
+branches: master
+
+constraint-set base-compat-0.10
+  constraints: base-compat ==0.10.*
+
+constraint-set base-compat-0.11
+  constraints: base-compat ==0.11.*
diff --git a/cabal.project b/cabal.project
new file mode 100644
index 0000000..b0a523c
--- /dev/null
+++ b/cabal.project
@@ -0,0 +1,2 @@
+packages: .
+tests: true
diff --git a/servant-quickcheck.cabal b/servant-quickcheck.cabal
index d415809..00151bd 100644
--- a/servant-quickcheck.cabal
+++ b/servant-quickcheck.cabal
@@ -1,5 +1,5 @@
 name:               servant-quickcheck
-version:            0.0.7.4
+version:            0.0.8
 synopsis:           QuickCheck entire APIs
 description:
   This packages provides QuickCheck properties that are tested across an entire
@@ -13,7 +13,7 @@ category:           Web
 build-type:         Simple
 cabal-version:      >=1.10
 extra-source-files: CHANGELOG.yaml
-tested-with:        GHC ==8.0.2 || ==8.2.2 || ==8.4.4 || ==8.6.4
+tested-with:        GHC ==8.0.2 || ==8.2.2 || ==8.4.4 || ==8.6.5 || == 8.8.1
 
 source-repository head
   type:     git
@@ -35,11 +35,11 @@ library
 
   build-depends:
       aeson                  >=0.8    && <2
-    , base                   >=4.9    && <4.13
-    , base-compat-batteries  >=0.10.1 && <0.11
+    , base                   >=4.9    && <4.14
+    , base-compat-batteries  >=0.10.1 && <0.12
     , bytestring             >=0.10   && <0.11
     , case-insensitive       >=1.2    && <1.3
-    , clock                  >=0.7    && <0.8
+    , clock                  >=0.7    && <0.9
     , data-default-class     >=0.0    && <0.2
     , hspec                  >=2.5.6  && <2.8
     , http-client            >=0.4.30 && <0.7
@@ -56,11 +56,11 @@ library
     , string-conversions     >=0.3    && <0.5
     , temporary              >=1.2    && <1.4
     , text                   >=1      && <2
-    , time                   >=1.5    && <1.9
-    , warp                   >=3.2.4  && <3.3
+    , time                   >=1.5    && <1.10
+    , warp                   >=3.2.4  && <3.4
 
   if !impl(ghc >=8.0)
-    build-depends: semigroups >=0.18.3 && <0.19
+    build-depends: semigroups >=0.18.3 && <0.20
 
   hs-source-dirs:     src
   default-extensions: