diff --git a/.ruby-version b/.ruby-version
index 79a614418..59aa62c1f 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.4.4
+2.4.5
diff --git a/.travis.yml b/.travis.yml
index 430d7fbb2..1a323c08a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,7 +4,7 @@ env:
   - DB=postgresql
 bundler_args: --without development staging production
 before_install:
-  - "wget -N http://chromedriver.storage.googleapis.com/2.40/chromedriver_linux64.zip -P ~/"
+  - "wget -N http://chromedriver.storage.googleapis.com/2.43/chromedriver_linux64.zip -P ~/"
   - "unzip ~/chromedriver_linux64.zip -d ~/"
   - "rm ~/chromedriver_linux64.zip"
   - "sudo mv -f ~/chromedriver /usr/local/share/"
diff --git a/config/application-example.yml b/config/application-example.yml
index 7baa29740..96e79771c 100644
--- a/config/application-example.yml
+++ b/config/application-example.yml
@@ -155,6 +155,7 @@ test:
 
 # Airbrake // Errbit:
 airbrake_host: "https://your-errbit-host.ee"
-# airbrake_env: "staging", defaults to Rails.env
+# airbrake_env defaults to Rails.env, can be left blank.
+# airbrake_env: "staging"
 airbrake_project_id: "1"
 airbrake_project_key: "api_key"