diff --git a/bin/install-wp-tests.sh b/bin/install-wp-tests.sh
index 2d18e8a..5a64adc 100755
--- a/bin/install-wp-tests.sh
+++ b/bin/install-wp-tests.sh
@@ -15,7 +15,7 @@ set -ex
 # set up a WP install
 WP_CORE_DIR=/tmp/wordpress/
 mkdir -p $WP_CORE_DIR
-wget -nv -O /tmp/wordpress.tar.gz https://github.com/WordPress/WordPress/archive/$WP_VERSION.tar.gz
+wget -nv -O /tmp/wordpress.tar.gz https://github.com/WordPress/WordPress/tarball/$WP_VERSION
 tar --strip-components=1 -zxmf /tmp/wordpress.tar.gz -C $WP_CORE_DIR
 
 # set up testing suite