diff --git a/.travis.yml b/.travis.yml
index 060ab967bb0..e4b206f61aa 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,17 +19,11 @@ php:
 env:
   - WP_VERSION=latest WP_MULTISITE=0
 
-# Additional tests against stable PHP (min recommended version is 5.6) and past supported versions of WP
+# Additional tests against stable PHP (min version is 5.6)
 # and code coverage report.
 matrix:
   fast_finish: true
   include:
-  - php: 5.3
-    dist: precise
-    env: WP_VERSION=5.1.1 WP_MULTISITE=0 RUN_PHPCS=0
-  - php: 5.2
-    dist: precise
-    env: WP_VERSION=5.1.1 WP_MULTISITE=0 RUN_PHPCS=0
   - name: "Coding standard check"
     php: 7.2
     env: WP_VERSION=latest WP_MULTISITE=0 RUN_PHPCS=1
@@ -61,19 +55,14 @@ before_script:
       echo "xdebug.ini does not exist"
     fi
   - |
-    # Install WP Test suite, install PHPUnit globally if needed:
+    # Install WP Test suite, install PHPUnit globally:
     if [[ ! -z "$WP_VERSION" ]]; then
       bash tests/bin/install.sh woocommerce_test root '' localhost $WP_VERSION
-      # PHP 5.2 does not have composer, do not try to run it.
-      if [[ ${TRAVIS_PHP_VERSION:0:3} != "5.2" ]]; then
-        composer global require "phpunit/phpunit=4.8.*|6.5.*"
-      fi
+      composer global require "phpunit/phpunit=4.8.*|6.5.*"
     fi
   - |
-    # Install wpcs globally if needed:
-    if [[ ${RUN_PHPCS} == 1 ]] && [[ ${TRAVIS_PHP_VERSION:0:3} != "5.2" ]]; then
-      composer require woocommerce/woocommerce-sniffs
-    fi
+    # Install wpcs globally:
+    composer require woocommerce/woocommerce-sniffs
 
 script:
   - bash tests/bin/phpunit.sh
diff --git a/phpcs.xml b/phpcs.xml
index 18262bba637..c0fbbb1f0b1 100644
--- a/phpcs.xml
+++ b/phpcs.xml
@@ -16,7 +16,7 @@
 
 	<!-- Configs -->
 	<config name="minimum_supported_wp_version" value="4.7" />
-	<config name="testVersion" value="5.2-" />
+	<config name="testVersion" value="5.6-" />
 
 	<!-- Rules -->
 	<rule ref="WooCommerce-Core" />
diff --git a/readme.txt b/readme.txt
index 9e6856390ac..a1e3f56466f 100644
--- a/readme.txt
+++ b/readme.txt
@@ -3,6 +3,7 @@ Contributors: automattic, mikejolley, jameskoster, claudiosanches, claudiulodro,
 Tags: ecommerce, e-commerce, store, sales, sell, shop, cart, checkout, downloadable, downloads, payments, paypal, storefront, stripe, woo commerce, woo
 Requires at least: 4.7
 Tested up to: 5.2
+Requires PHP: 5.6
 Stable tag: 3.6.0
 License: GPLv3
 License URI: https://www.gnu.org/licenses/gpl-3.0.html