diff --git a/.travis.yml b/.travis.yml
index 6a80d6a6..4b4e7dbe 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -38,9 +38,8 @@ before_install:
 
 script:
 - agda --version
-- agda2html --version
 - acknowledgements --version
-- make test-offline
+# - make test-offline # disable to only build cache
 
 before_deploy:
 - acknowledgements -i _config.yml >> _config.yml
diff --git a/README.md b/README.md
index 2c7234f7..aa12d39c 100644
--- a/README.md
+++ b/README.md
@@ -5,16 +5,16 @@ permalink: /GettingStarted/
 ---
 
 [![Build Status](https://travis-ci.org/plfa/plfa.github.io.svg?branch=dev)](https://travis-ci.org/plfa/plfa.github.io)
-[![Agda](https://img.shields.io/badge/agda-2.5.4.2-blue.svg)](https://github.com/agda/agda/releases/tag/v2.5.4.2)
-[![agda-stdlib](https://img.shields.io/badge/agda--stdlib-0.17-blue.svg)](https://github.com/agda/agda-stdlib/releases/tag/v0.17)
+[![Agda](https://img.shields.io/badge/agda-2.6.0.1-blue.svg)](https://github.com/agda/agda/releases/tag/v2.6.0.1)
+[![agda-stdlib](https://img.shields.io/badge/agda--stdlib-1.1-blue.svg)](https://github.com/agda/agda-stdlib/releases/tag/v1.1)
 
 
 # Getting Started with PLFA
 
 There are several tools you need to work with PLFA:
 
-  - [Agda](https://agda.readthedocs.io/en/v2.5.4.2/getting-started/installation.html)
-  - [Agda standard library](https://github.com/agda/agda-stdlib/tree/5819a4dd9c965296224944f05b1481805649bdc2)
+  - [Agda](https://agda.readthedocs.io/en/v2.6.0.1/getting-started/installation.html)
+  - [Agda standard library](https://github.com/agda/agda-stdlib/releases/tag/v1.1)
 
 For most of the tools, you can simply follow their respective build instructions.
 We list the versions of our dependencies on the badges above.
@@ -26,7 +26,7 @@ or by downloading [the zip archive](https://github.com/plfa/plfa.github.io/archi
     git clone https://github.com/plfa/plfa.github.io 
 
 Finally, we need to let Agda know where to find the standard library.
-For this, you can follow the instructions [here](https://agda.readthedocs.io/en/v2.5.4.2/tools/package-system.html#example-using-the-standard-library).
+For this, you can follow the instructions [here](https://agda.readthedocs.io/en/v2.6.0.1/tools/package-system.html#example-using-the-standard-library).
 
 It is possible to set up PLFA as an Agda library as well.
 If you are trying to complete the exercises found in the `tspl` folder, or otherwise want to import modules from the book, you need to do this.
diff --git a/_includes/header.html b/_includes/header.html
index e299dd76..40bfb117 100644
--- a/_includes/header.html
+++ b/_includes/header.html
@@ -15,9 +15,7 @@
 
             <div class="trigger">
                 <a class="page-link" href="{{ "/" | relative_url }}">The Book</a>
-                <!--!>
                 <a class="page-link" href="{{ "/Announcements/" | relative_url }}">Announcements</a>
-                <---->
                 <a class="page-link" href="{{ "/GettingStarted/" | relative_url }}">Getting Started</a>
                 <a class="page-link" href="{{ "/Citing/" | relative_url }}">Citing</a>
                 <a class="page-link" href="{{ "https://agda-zh.github.io/PLFA-zh/" | relative_url }}">中文</a>