diff --git a/.travis.yml b/.travis.yml
index 4769405..74d10cd 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,10 +1,9 @@
 language: php
 
 php:
-  - '7.0'
-  - '7.1'
   - '7.2'
   - '7.3'
+  - '7.4'
 
 before_install:
   - curl -L https://codeclimate.com/downloads/test-reporter/test-reporter-latest-linux-amd64 > ./cc-test-reporter
@@ -17,7 +16,7 @@ before_script:
   - ./cc-test-reporter before-build
 
 script:
-  - ./vendor/bin/phpunit --coverage-clover clover.xml
+  - XDEBUG_MODE=coverage ./vendor/bin/phpunit --coverage-clover clover.xml
 
 after_script:
   - ./cc-test-reporter after-build --coverage-input-type clover --exit-code $TRAVIS_TEST_RESULT
diff --git a/composer.json b/composer.json
index 34b830e..6f7821d 100644
--- a/composer.json
+++ b/composer.json
@@ -12,8 +12,8 @@
     ],
     "license": "BSD-3-Clause",
     "require": {
-        "php": ">=7.0",
-        "opentracing/opentracing": "^1.0.0@dev",
+        "php": ">=7.2",
+        "opentracing/opentracing": "^1.0.0",
         "ralouphie/getallheaders": "^2.0 || ^3.0",
         "yiisoft/yii": "^1.1.18"
     },
@@ -22,7 +22,7 @@
     },
     "require-dev": {
         "jonahgeorge/jaeger-client-php": "dev-master",
-        "phpunit/phpunit": "^6.5.14",
+        "phpunit/phpunit": "^8.5.0",
         "roave/security-advisories": "dev-master"
     },
     "suggest": {
diff --git a/src/OpenTracing.php b/src/OpenTracing.php
index 44a2342..e507ef3 100644
--- a/src/OpenTracing.php
+++ b/src/OpenTracing.php
@@ -2,13 +2,13 @@
 
 namespace Websupport\OpenTracing;
 
-use OpenTracing\Exceptions\UnsupportedFormat;
 use OpenTracing\Formats;
 use OpenTracing\GlobalTracer;
 use OpenTracing\NoopTracer;
 use OpenTracing\Scope;
 use OpenTracing\Span;
 use OpenTracing\Tracer;
+use OpenTracing\UnsupportedFormatException;
 use Yii;
 
 class OpenTracing extends \CApplicationComponent
@@ -48,7 +48,7 @@ public function init()
      */
     protected function initTracer()
     {
-        $this->setTracer(NoopTracer::create());
+        $this->setTracer(new NoopTracer());
     }
 
     /**
@@ -72,6 +72,7 @@ public function getTracer()
 
     /**
      * @param Tracer $tracer
+     *
      * @return $this
      */
     public function setTracer(Tracer $tracer)
@@ -85,6 +86,7 @@ public function setTracer(Tracer $tracer)
     /**
      * @param string $operationName
      * @param array $options
+     *
      * @return Scope
      */
     public function startActiveSpan(string $operationName, array $options = [])
@@ -99,7 +101,8 @@ public function startActiveSpan(string $operationName, array $options = [])
     /**
      * @param string $format
      * @param mixed $carrier
-     * @throws UnsupportedFormat
+     *
+     * @throws UnsupportedFormatException
      */
     public function injectActiveSpan(string $format, &$carrier)
     {
@@ -196,6 +199,7 @@ private function setSentryTag(Span $span)
 
     /**
      * @param \CEvent $event
+     *
      * @return string
      */
     private function operationNameFromBeginRequestEvent(\CEvent $event)
@@ -216,6 +220,7 @@ private function operationNameFromBeginRequestEvent(\CEvent $event)
 
     /**
      * @param \CEvent $event
+     *
      * @return array
      */
     private function spanOptionsFromBeginRequestEvent(\CEvent $event)
diff --git a/tests/ActiveRecordBehaviorTest.php b/tests/ActiveRecordBehaviorTest.php
index c30b2f3..caab51e 100644
--- a/tests/ActiveRecordBehaviorTest.php
+++ b/tests/ActiveRecordBehaviorTest.php
@@ -74,7 +74,7 @@ public function testTraceDelete()
         $activeRecord->delete();
     }
 
-    protected function setUp()
+    protected function setUp(): void
     {
         parent::setUp();
 
diff --git a/tests/Support/TestCase/DatabaseIntegrationTestCase.php b/tests/Support/TestCase/DatabaseIntegrationTestCase.php
index 8191343..4cbd3d6 100644
--- a/tests/Support/TestCase/DatabaseIntegrationTestCase.php
+++ b/tests/Support/TestCase/DatabaseIntegrationTestCase.php
@@ -6,7 +6,7 @@
 
 abstract class DatabaseIntegrationTestCase extends TestCase
 {
-    protected function setUp()
+    protected function setUp():void
     {
         parent::setUp();
 
diff --git a/tests/Support/TestCase/TestCase.php b/tests/Support/TestCase/TestCase.php
index 5d14d49..f09fb6d 100644
--- a/tests/Support/TestCase/TestCase.php
+++ b/tests/Support/TestCase/TestCase.php
@@ -6,7 +6,7 @@
 
 abstract class TestCase extends \PHPUnit\Framework\TestCase
 {
-    protected function tearDown()
+    protected function tearDown(): void
     {
         $this->destroyApplication();