diff --git a/README.md b/README.md
index 686439b27bd3bedf525a9e83ac7f6f04672bc98f..ddd2a304f7ffb5539face5516b20e4c295d72ecc 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,14 @@ $ source venv/bin/activate
 $ pip install -r requirements.txt
 ```
 
+### Package upgrade with pip
+
+```console
+$ pip list -o
+$ pip install --upgrade <package
+$ pip freeze | sed '/pkg-resources==/d' > requirements.txt
+```
+
 ## Environments
 
 * [https://docs.it4i.cz - master branch](https://docs.it4i.cz - master branch)
diff --git a/mkdocs.yml b/mkdocs.yml
index 8483d0a2d392307a3184dfb5cbf60c64caab1160..95416316886029fb2220c0c6613b5f1f1135b48e 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -18,6 +18,7 @@ copyright: Copyright (c) 2013-2019 IT4Innovations__VERSION__
 theme:
   name: material
   custom_dir: material
+  language: 'en'
 
   # 404 page
   static_templates:
@@ -201,6 +202,9 @@ nav:
     - PBS Pro Documentation: pbspro.md
 
 extra:
+  search:
+    language: 'en'
+    tokenizer: '[\s\.]+'
   repo_icon: gitlab
   disqus: 'test-3whnesz3gq'
   social:
diff --git a/requirements.txt b/requirements.txt
index b429a1d7aa1b21e12e2e5e420d56b17dbfe73720..6fe1e35bcc0daf467b9930a57acfa7a08b11873c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,15 +1,17 @@
 backports-abc==0.5
 Click==7.0
+EditorConfig==0.12.2
 futures==3.2.0
 Jinja2==2.10
-livereload==2.5.2
+jsbeautifier==1.8.9
+livereload==2.6.0
 Markdown==3.0.1
-MarkupSafe==1.0
+MarkupSafe==1.1.0
 mkdocs==1.0.4
-mkdocs-material==3.0.5
-Pygments==2.2.0
+mkdocs-material==3.3.0
+Pygments==2.3.1
 pymdown-extensions==6.0
 PyYAML==3.13
 singledispatch==3.4.0.3
-six==1.11.0
+six==1.12.0
 tornado==5.1.1