diff --git a/composer.json b/composer.json
index 62feabd48..778ee8074 100644
--- a/composer.json
+++ b/composer.json
@@ -23,11 +23,11 @@
     ],
     "require": {
         "php": "^7.2|^8.0",
+        "composer-runtime-api": "^2.0",
         "ext-json": "*",
         "ext-mbstring": "*",
         "ext-curl": "*",
         "guzzlehttp/psr7": "^1.8.4|^2.1.1",
-        "jean85/pretty-package-versions": "^1.5|^2.0.4",
         "psr/log": "^1.0|^2.0|^3.0",
         "symfony/options-resolver": "^4.4.30|^5.0.11|^6.0|^7.0|^8.0"
     },
diff --git a/src/Integration/ModulesIntegration.php b/src/Integration/ModulesIntegration.php
index 6dd620d24..b5ad0e7a0 100644
--- a/src/Integration/ModulesIntegration.php
+++ b/src/Integration/ModulesIntegration.php
@@ -5,7 +5,6 @@
 namespace Sentry\Integration;
 
 use Composer\InstalledVersions;
-use Jean85\PrettyVersions;
 use Sentry\Event;
 use Sentry\SentrySdk;
 use Sentry\State\Scope;
@@ -47,7 +46,11 @@ private static function getComposerPackages(): array
         if (empty(self::$packages)) {
             foreach (self::getInstalledPackages() as $package) {
                 try {
-                    self::$packages[$package] = PrettyVersions::getVersion($package)->getPrettyVersion();
+                    $prettyVersion = InstalledVersions::getPrettyVersion($package);
+
+                    if ($prettyVersion !== null) {
+                        self::$packages[$package] = $prettyVersion;
+                    }
                 } catch (\Throwable $exception) {
                     continue;
                 }
@@ -66,21 +69,6 @@ private static function getInstalledPackages(): array
             return InstalledVersions::getInstalledPackages();
         }
 
-        $versionsClass = 'PackageVersions\\Versions';
-
-        if (class_exists($versionsClass)) {
-            // BC layer for Composer 1, using a transient dependency
-            /** @var mixed $versions */
-            $versions = \constant($versionsClass . '::VERSIONS');
-
-            if (\is_array($versions)) {
-                /** @var string[] $packages */
-                $packages = array_keys($versions);
-
-                return $packages;
-            }
-        }
-
         // this should not happen
         return ['sentry/sentry'];
     }