diff --git a/composer.json b/composer.json
index 1513187105313c544de2b6bcc3c2f22c3e2cb496..bfb5a6ce107e22a14d8c6b67804a761210660304 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,8 @@
     "require": {
         "php": "~5.3",
         "simplesamlphp/saml2": "~0.3",
-        "simplesamlphp/xmlseclibs": "~1.3.2"
+        "simplesamlphp/xmlseclibs": "~1.3.2",
+        "whitehat101/apr1-md5": "~1.0"
     },
     "require-dev": {
         "phpunit/phpunit": "~3.7",