diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..b7ef92d
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,52 @@
+name: Haskell CI
+
+on: [pull_request]
+
+jobs:
+  build:
+    name: ghc ${{ matrix.ghc }}
+    runs-on: ubuntu-16.04
+    strategy:
+      matrix:
+        ghc: ["8.2.2", "8.4.4", "8.6.5", "8.8.3", "8.10.1"]
+        cabal: ["latest"]
+
+    steps:
+    - uses: actions/checkout@v2
+      if: github.event.action == 'opened' || github.event.action == 'synchronize' || github.event.ref == 'refs/heads/master'
+
+    - uses: actions/setup-haskell@v1.1.2
+      name: Setup Haskell
+      with:
+        ghc-version: ${{ matrix.ghc }}
+        cabal-version: ${{ matrix.cabal }}
+
+    - uses: actions/cache@v1
+      name: Cache ~/.cabal/packages
+      with:
+        path: ~/.cabal/packages
+        key: ${{ runner.os }}-${{ matrix.ghc }}-cabal-packages
+    - uses: actions/cache@v1
+      name: Cache ~/.cabal/store
+      with:
+        path: ~/.cabal/store
+        key: ${{ runner.os }}-${{ matrix.ghc }}-cabal-store
+    - uses: actions/cache@v1
+      name: Cache dist-newstyle
+      with:
+        path: dist-newstyle
+        key: ${{ runner.os }}-${{ matrix.ghc }}-fused-effects-exceptions-dist
+
+    - name: Install dependencies
+      run: |
+        cabal v2-update
+        cabal v2-configure --project-file=cabal.project.ci --enable-tests --write-ghc-environment-files=always -j2
+        cabal v2-build     --project-file=cabal.project.ci --only-dependencies all
+
+    - name: Build & test
+      run: |
+        cabal v2-build   --project-file=cabal.project.ci
+        cabal v2-run     --project-file=cabal.project.ci test
+        cabal v2-haddock --project-file=cabal.project.ci
+        cabal v2-sdist   --project-file=cabal.project.ci
+        cabal check
diff --git a/.github/workflows/haskell.yml b/.github/workflows/haskell.yml
deleted file mode 100644
index e61f342..0000000
--- a/.github/workflows/haskell.yml
+++ /dev/null
@@ -1,36 +0,0 @@
-name: Haskell CI
-
-on: [pull_request]
-
-jobs:
-  build:
-    name: ghc ${{ matrix.ghc }}
-    runs-on: ubuntu-16.04
-    strategy:
-      matrix:
-        ghc: ["8.2.2", "8.4.4", "8.6.5", "8.8.1"]
-        cabal: ["3.0"]
-
-    steps:
-    - uses: actions/checkout@master
-      if: github.event.action == 'opened' || github.event.action == 'synchronize'
-
-    - uses: actions/setup-haskell@v1
-      name: Setup Haskell
-      with:
-        ghc-version: ${{ matrix.ghc }}
-        cabal-version: ${{ matrix.cabal }}
-
-    - name: Install dependencies
-      run: |
-        cabal v2-update
-        cabal v2-configure --enable-tests --write-ghc-environment-files=always -j2
-        cabal v2-build --only-dependencies
-
-    - name: Build & test
-      run: |
-        cabal v2-build
-        cabal v2-test
-        cabal v2-haddock
-        cabal v2-sdist
-        cabal check
diff --git a/ChangeLog.md b/ChangeLog.md
index 0344e38..1daaeee 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,8 @@
+# 1.1.0.0
+
+* Port to fused-effects 1.1.
+
+
 # 1.0.0.0
 
 * Port to fused-effects 1.0.
diff --git a/cabal.project.ci b/cabal.project.ci
new file mode 100644
index 0000000..f022fab
--- /dev/null
+++ b/cabal.project.ci
@@ -0,0 +1,4 @@
+packages: .
+
+package fused-effects-exceptions
+  ghc-options: -Werror
diff --git a/fused-effects-exceptions.cabal b/fused-effects-exceptions.cabal
index 2f922c2..8557930 100644
--- a/fused-effects-exceptions.cabal
+++ b/fused-effects-exceptions.cabal
@@ -1,7 +1,7 @@
 cabal-version:       2.4
 
 name:                fused-effects-exceptions
-version:             1.0.0.0
+version:             1.1.0.0
 synopsis:            Handle exceptions thrown in IO with fused-effects.
 description:         Provides Resource and Catch effects capable of reacting to and catching GHC's dynamic exceptions.
 homepage:            https://github.com/fused-effects/fused-effects-exceptions#readme
@@ -20,7 +20,8 @@ tested-with:
   GHC == 8.2.2
   GHC == 8.4.4
   GHC == 8.6.5
-  GHC == 8.8.1
+  GHC == 8.8.3
+  GHC == 8.10.1
 
 common common
   default-language: Haskell2010
diff --git a/test/Main.hs b/test/Main.hs
index 536e95d..3b957cb 100644
--- a/test/Main.hs
+++ b/test/Main.hs
@@ -19,12 +19,12 @@ problematic =
 
 testStateDropsWrites :: Tasty.TestTree
 testStateDropsWrites = HUnit.testCase "State.Strict drops writes" $ do
-  result <- State.execState 'a' $ problematic
+  result <- State.execState 'a' problematic
   result HUnit.@?= 'a' -- writes are lost
 
 testIOStatePreservesWrites :: Tasty.TestTree
 testIOStatePreservesWrites = HUnit.testCase "State.IORef preserves writes" $ do
-  result <- IOState.execState 'a' $ problematic
+  result <- IOState.execState 'a' problematic
   result HUnit.@?= 'x'
 
 tests :: Tasty.TestTree
@@ -37,4 +37,3 @@ tests = Tasty.testGroup "Control.Carrier.Exception"
 
 main :: IO ()
 main = Tasty.defaultMain tests
-