diff --git a/.travis.yml b/.travis.yml
index d663fcdc2..34a1bd0de 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,7 +13,9 @@ matrix:
     - php: 7.4snapshot
     - php: nightly
 
-before_install: printf "\n" | pecl install imagick
+before_install:
+  - pecl channel-update pecl.php.net
+  - printf "\n" | pecl install imagick
 install: travis_retry composer install --no-interaction --prefer-source
 script: vendor/bin/phpunit --configuration phpunit.xml --coverage-clover clover.xml
 after_script: bash <(curl -s https://codecov.io/bash)
diff --git a/README.md b/README.md
index d8e7bc3c1..ca1ba3e40 100644
--- a/README.md
+++ b/README.md
@@ -34,6 +34,11 @@ Hi, please check out my other projects that are way cooler than qrcodes!
 
 ## Documentation
 
+### Requirements
+- PHP 7.2+
+  - `ext-gd`, `ext-json`, `ext-mbstring`
+  - optional `ext-imagick`
+
 ### Installation
 **requires [composer](https://getcomposer.org)**
 
diff --git a/composer.json b/composer.json
index de5710317..ff566bdbb 100644
--- a/composer.json
+++ b/composer.json
@@ -34,7 +34,7 @@
 		"phpunit/phpunit": "^8.3"
 	},
 	"suggest": {
-		"chillerlan/php-authenticator": "^3.0"
+		"chillerlan/php-authenticator": "Yet another Google authenticator! Also creates URIs for mobile apps."
 	},
 	"autoload": {
 		"psr-4": {