diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Revision history for lifted-async
 
+## v0.10.0.3 - 2018-09-25
+
+* Relax upper version bound for base to support GHC 8.6.1
+
 ## v0.10.0.2 - 2018-05-13
 
 * Allow test_link to fail because it's non-deterministic (#26)
diff --git a/lifted-async.cabal b/lifted-async.cabal
--- a/lifted-async.cabal
+++ b/lifted-async.cabal
@@ -1,5 +1,5 @@
 name:                lifted-async
-version:             0.10.0.2
+version:             0.10.0.3
 synopsis:            Run lifted IO operations asynchronously and wait for their results
 homepage:            https://github.com/maoe/lifted-async
 bug-reports:         https://github.com/maoe/lifted-async/issues
@@ -12,7 +12,8 @@
 build-type:          Simple
 cabal-version:       >= 1.8
 tested-with:
-    GHC == 8.4.1
+    GHC == 8.6.1
+  , GHC == 8.4.3
   , GHC == 8.2.2
   , GHC == 8.0.2
   , GHC == 7.10.2
@@ -30,7 +31,7 @@
     Control.Concurrent.Async.Lifted
     Control.Concurrent.Async.Lifted.Safe
   build-depends:
-      base >= 4.5 && < 4.12
+      base >= 4.5 && < 4.13
     , async >= 2.2 && < 2.3
     , lifted-base >= 0.2 && < 0.3
     , transformers-base >= 0.4 && < 0.5