diff --git a/hledger-api/package.yaml b/hledger-api/package.yaml
index 2dd6a52a3..614bc0398 100644
--- a/hledger-api/package.yaml
+++ b/hledger-api/package.yaml
@@ -19,7 +19,7 @@ github: simonmichael/hledger
 homepage: http://hledger.org
 bug-reports: http://bugs.hledger.org
 stability: alpha
-tested-with: GHC==7.10.3, GHC==8.0.2, GHC==8.2.2, GHC==8.4.3
+tested-with: GHC==7.10.3, GHC==8.0.2, GHC==8.2.2, GHC==8.4.3, GHC==8.6.3
 
 extra-source-files:
 - CHANGES.md
diff --git a/hledger-lib/package.yaml b/hledger-lib/package.yaml
index e70c3b0ce..edfd2e776 100644
--- a/hledger-lib/package.yaml
+++ b/hledger-lib/package.yaml
@@ -18,7 +18,7 @@ github: simonmichael/hledger
 homepage: http://hledger.org
 bug-reports: http://bugs.hledger.org
 stability: stable
-tested-with: GHC==7.10.3, GHC==8.0.2, GHC==8.2.2, GHC==8.4.3
+tested-with: GHC==7.10.3, GHC==8.0.2, GHC==8.2.2, GHC==8.4.3, GHC==8.6.3
 
 extra-source-files:
 - CHANGES.md
diff --git a/hledger-ui/package.yaml b/hledger-ui/package.yaml
index f417a637f..604f6778e 100644
--- a/hledger-ui/package.yaml
+++ b/hledger-ui/package.yaml
@@ -20,7 +20,7 @@ github      : simonmichael/hledger
 homepage    : http://hledger.org
 bug-reports : http://bugs.hledger.org
 stability   : stable
-tested-with : GHC==7.10.3, GHC==8.0.2, GHC==8.2.2, GHC==8.4.3
+tested-with: GHC==7.10.3, GHC==8.0.2, GHC==8.2.2, GHC==8.4.3, GHC==8.6.3
 
 extra-source-files:
   - CHANGES.md
diff --git a/hledger-web/package.yaml b/hledger-web/package.yaml
index 84044f352..e66fa9a2c 100644
--- a/hledger-web/package.yaml
+++ b/hledger-web/package.yaml
@@ -20,7 +20,7 @@ github: simonmichael/hledger
 homepage: http://hledger.org
 bug-reports: http://bugs.hledger.org
 stability: stable
-tested-with: GHC==7.10.3, GHC==8.0.2, GHC==8.2.2, GHC==8.4.3
+tested-with: GHC==7.10.3, GHC==8.0.2, GHC==8.2.2, GHC==8.4.3, GHC==8.6.3
 
 extra-source-files:
 - CHANGES.md
diff --git a/hledger/package.yaml b/hledger/package.yaml
index 96c839b61..364eadea9 100644
--- a/hledger/package.yaml
+++ b/hledger/package.yaml
@@ -20,7 +20,7 @@ github: simonmichael/hledger
 homepage: http://hledger.org
 bug-reports: http://bugs.hledger.org
 stability: stable
-tested-with: GHC==7.10.3, GHC==8.0.2, GHC==8.2.2, GHC==8.4.3
+tested-with: GHC==7.10.3, GHC==8.0.2, GHC==8.2.2, GHC==8.4.3, GHC==8.6.3
 
 extra-source-files:
 - CHANGES.md