diff --git a/examples/multi_curl_get_load_test.php b/examples/multi_curl_get_load_test.php
index 6b93431..d124477 100644
--- a/examples/multi_curl_get_load_test.php
+++ b/examples/multi_curl_get_load_test.php
@@ -3,12 +3,12 @@ require __DIR__ . '/../vendor/autoload.php';
 
 use Curl\MultiCurl;
 
-$server_count = 5;
+$server_count = 7;
 $urls = [];
 $port = 8000;
 for ($i = 0; $i < $server_count; $i++) {
-    $port += 1;
     $urls[] = 'http://localhost:' . $port . '/';
+    $port += 1;
 }
 
 $multi_curl = new MultiCurl();
diff --git a/tests/before_script.sh b/tests/before_script.sh
index 4f59d33..0d17844 100755
--- a/tests/before_script.sh
+++ b/tests/before_script.sh
@@ -1,12 +1,5 @@
-start_php_servers() {
-    for i in $(seq 0 6); do
-        port=8000
-        (( port += $i ))
-        php -S "127.0.0.1:${port}" -t tests/PHPCurlClass/ &
-    done
-}
-
 set -x
+
 echo "CI_PHP_VERSION: ${CI_PHP_VERSION}"
 php -r "var_dump(phpversion());"
 php -r "var_dump(curl_version());"
@@ -17,4 +10,12 @@ composer install --prefer-source --no-interaction
 # Let test server know we should allow testing.
 export PHP_CURL_CLASS_TEST_MODE_ENABLED="yes"
 
-start_php_servers
+# Start test servers. Run servers on different ports to allow simultaneous
+# requests without blocking.
+server_count=7
+for i in $(seq 0 $(("${server_count}" - 1))); do
+    port=8000
+    (( port += $i ))
+
+    php -S "127.0.0.1:${port}" -t tests/PHPCurlClass/ &
+done