diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c011a3b..83ccc83 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -12,7 +12,7 @@ jobs:
     strategy:
       matrix:
         arch: ['src', 'src64']
-        version: ['17.12', '18.6', '18.12', '19.6', 'latest']
+        version: ['17.12', '18.6', '18.12', '19.6', '19.12', '20.6', 'latest']
 
     steps:
       - uses: actions/checkout@v1
diff --git a/LICENSE b/LICENSE
index 9d55bbb..a56611d 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2019 Alexander Williams, Unscramble <license@unscramble.jp>
+Copyright (c) 2020 Alexander Williams, Unscramble <license@unscramble.jp>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in
diff --git a/README.md b/README.md
index 7b7626a..04f8736 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ Please read [EXPLAIN.md](EXPLAIN.md) to learn more about PicoLisp and this Unit
 # Requirements
 
   * PicoLisp 32-bit or 64-bit `v3.1.9+`
-  * Tested up to PicoLisp `v19.11.25`, [see test runs](https://github.com/aw/picolisp-unit/commit/1a455ba10058dffacfb3d4ef930c89ee82a57a83/checks)
+  * Tested up to PicoLisp `v20.6.29`, [see test runs](https://github.com/aw/picolisp-unit/commit/1a455ba10058dffacfb3d4ef930c89ee82a57a83/checks)
 
 # Getting Started
 
@@ -251,4 +251,4 @@ If you want to improve this library, please make a pull-request.
 
 [MIT License](LICENSE)
 
-Copyright (c) 2015-2019 Alexander Williams, Unscramble <license@unscramble.jp>
+Copyright (c) 2015-2020 Alexander Williams, Unscramble <license@unscramble.jp>
diff --git a/module.l b/module.l
index e6d9d2f..18f4849 100644
--- a/module.l
+++ b/module.l
@@ -5,4 +5,4 @@
   ("source"     "https://github.com/aw/picolisp-unit.git")
   ("author"     "Alexander Williams")
   ("license"    "MIT")
-  ("copyright"  "(c) 2019 Alexander Williams, Unscramble <license@unscramble.jp>") ]
+  ("copyright"  "(c) 2020 Alexander Williams, Unscramble <license@unscramble.jp>") ]
diff --git a/reporters/default.l b/reporters/default.l
index 39e9ee8..d7004df 100644
--- a/reporters/default.l
+++ b/reporters/default.l
@@ -2,7 +2,7 @@
 #
 # The MIT License (MIT)
 #
-# Copyright (c) 2017 Alexander Williams, Unscramble <license@unscramble.jp>
+# Copyright (c) 2020 Alexander Williams, Unscramble <license@unscramble.jp>
 
 (de *Colours  ("red"    . 1)
               ("green"  . 2)
diff --git a/reporters/plain.l b/reporters/plain.l
index 5dc38bc..ca6d21f 100644
--- a/reporters/plain.l
+++ b/reporters/plain.l
@@ -2,7 +2,7 @@
 #
 # The MIT License (MIT)
 #
-# Copyright (c) 2017 Alexander Williams, Unscramble <license@unscramble.jp>
+# Copyright (c) 2020 Alexander Williams, Unscramble <license@unscramble.jp>
 
 [de print-report ()
   (mapcar println *Results)
diff --git a/unit.l b/unit.l
index a60b009..6bdb707 100644
--- a/unit.l
+++ b/unit.l
@@ -2,7 +2,7 @@
 #
 # The MIT License (MIT)
 #
-# Copyright (c) 2019 Alexander Williams, Unscramble <license@unscramble.jp>
+# Copyright (c) 2020 Alexander Williams, Unscramble <license@unscramble.jp>
 
 (load (pack (car (file)) "module.l"))
 (load (pack (car (file)) "reporters/" (if (sys "TEST_REPORTER") @ "default") ".l"))