diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8e5de8e..db1fad0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog for Craft CMS Server Check
 
+## 2.1.5 - 2023-05-26
+
+### Fixed
+- Fixed an error that could occur when running the requirements checker using PHP 8+.
+
 ## 2.1.4 - 2022-04-16
 
 ### Added
diff --git a/server/requirements/RequirementsChecker.php b/server/requirements/RequirementsChecker.php
index 140ed7f..d9c4bc8 100644
--- a/server/requirements/RequirementsChecker.php
+++ b/server/requirements/RequirementsChecker.php
@@ -386,7 +386,7 @@ function getDbConnection()
 
         if ($conn === null) {
             try {
-                $conn = new PDO($this->dsn, $this->dbUser, $this->dbPassword);
+                $conn = new PDO((string)$this->dsn, $this->dbUser, $this->dbPassword);
                 $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
             } catch (PDOException $e) {
                 $conn = false;