diff --git a/.travis.yml b/.travis.yml
index 7356ca2..02399aa 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,7 +3,7 @@ sudo: false
 cache: apt
 
 before_script:
-  - wget http://software-lab.de/picoLisp-17.6.tgz -O /tmp/picolisp.tgz
+  - wget http://software-lab.de/picoLisp-17.12.tgz -O /tmp/picolisp.tgz
   - cd /tmp; tar -xf /tmp/picolisp.tgz
   - cd /tmp/picoLisp/src64 && make
 
diff --git a/README.md b/README.md
index c047752..7a85cd2 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ 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 v17.6
+  * Tested up to PicoLisp v17.12
 
 # Getting Started
 
@@ -248,4 +248,4 @@ If you want to improve this library, please make a pull-request.
 
 [MIT License](LICENSE)
 
-Copyright (c) 2017 Alexander Williams, Unscramble <license@unscramble.jp>
+Copyright (c) 2015-2018 Alexander Williams, Unscramble <license@unscramble.jp>