diff --git a/.travis.yml b/.travis.yml
index cfedc5620ce7364854b7f1c87319fc668f1a9b88..6723877176e3da58168de6fb27a894cceb0a1cb1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -28,9 +28,9 @@ before_cache:
 
 matrix:
   include:
-    - compiler: "ghc-8.6.2"
+    - compiler: "ghc-8.6.3"
     # env: TEST=--disable-tests BENCH=--disable-benchmarks
-      addons: {apt: {packages: [ghc-ppa-tools,cabal-install-2.4,ghc-8.6.2], sources: [hvr-ghc]}}
+      addons: {apt: {packages: [ghc-ppa-tools,cabal-install-2.4,ghc-8.6.3], sources: [hvr-ghc]}}
     - compiler: "ghc-8.4.4"
     # env: TEST=--disable-tests BENCH=--disable-benchmarks
       addons: {apt: {packages: [ghc-ppa-tools,cabal-install-2.4,ghc-8.4.4], sources: [hvr-ghc]}}
@@ -107,6 +107,7 @@ install:
     fi
   - grep -Ev -- '^\s*--' ${HOME}/.cabal/config | grep -Ev '^\s*$'
   - "printf 'packages: \".\"\\n' > cabal.project"
+  - "printf 'write-ghc-environment-files: always\\n' >> cabal.project"
   - touch cabal.project.local
   - "if ! $NOINSTALLEDCONSTRAINTS; then for pkg in $($HCPKG list --simple-output); do echo $pkg  | grep -vw -- hsc2hs | sed 's/^/constraints: /' | sed 's/-[^-]*$/ installed/' >> cabal.project.local; done; fi"
   - cat cabal.project || true
@@ -129,6 +130,7 @@ script:
   - cd ${DISTDIR} || false
   - find . -maxdepth 1 -name '*.tar.gz' -exec tar -xvf '{}' \;
   - "printf 'packages: hsc2hs-*/*.cabal\\n' > cabal.project"
+  - "printf 'write-ghc-environment-files: always\\n' >> cabal.project"
   - touch cabal.project.local
   - "if ! $NOINSTALLEDCONSTRAINTS; then for pkg in $($HCPKG list --simple-output); do echo $pkg  | grep -vw -- hsc2hs | sed 's/^/constraints: /' | sed 's/-[^-]*$/ installed/' >> cabal.project.local; done; fi"
   - cat cabal.project || true
diff --git a/hsc2hs.cabal b/hsc2hs.cabal
index d0f7428d9e99ea79f48bca212441c110caee3308..d4292eb524be68a72ea9e7f94f89df468a7ae896 100644
--- a/hsc2hs.cabal
+++ b/hsc2hs.cabal
@@ -24,7 +24,7 @@ Description:
 Category: Development
 Data-Files: template-hsc.h
 build-type: Simple
-tested-with: GHC==8.6.2, GHC==8.4.4, GHC==8.2.2, GHC==8.0.2, GHC==7.10.3, GHC==7.8.4, GHC==7.6.3, GHC==7.4.2, GHC==7.2.2, GHC==7.0.4
+tested-with: GHC==8.6.3, GHC==8.4.4, GHC==8.2.2, GHC==8.0.2, GHC==7.10.3, GHC==7.8.4, GHC==7.6.3, GHC==7.4.2, GHC==7.2.2, GHC==7.0.4
 
 extra-source-files:
   changelog.md