diff --git a/Makefile b/Makefile
index c3126c871e494c85b543f7d611a66d8510055aa3..c45b15ae2e70d4e331627396fceaff72b8f719db 100644
--- a/Makefile
+++ b/Makefile
@@ -62,8 +62,7 @@ ifdef simplesamlphp
 	@echo "SimpleSAMLphp already exists - doing nothing"
 else
 	@echo "Pulling SimpleSAMLphp from download ..."
-	@curl -sSL https://github.com/simplesamlphp/simplesamlphp/releases/download/v1.14.17/simplesamlphp-1.14.17.tar.gz | tar  --transform 's/simplesamlphp-[0-9]+\.[0-9]+\.[0-9]+/simplesamlphp/x1' -C htdocs/auth/saml/extlib -xzf -
-# SimpleSAMLPHP release tarball already has all composer dependencies.
+	@curl -sSL https://github.com/simplesamlphp/simplesamlphp/releases/download/v1.15.0/simplesamlphp-1.15.0.tar.gz | tar  --transform 's/simplesamlphp-[0-9]+\.[0-9]+\.[0-9]+/simplesamlphp/x1' -C htdocs/auth/saml/extlib -xzf - # SimpleSAMLPHP release tarball already has all composer dependencies.
 #	@php external/composer.phar --working-dir=htdocs/auth/saml/extlib/simplesamlphp update --no-dev
 	@echo "Deleting unneeded files ..."
 #	Delete composer.json and .lock files to avoid leaking minor version info
diff --git a/htdocs/auth/saml/db/upgrade.php b/htdocs/auth/saml/db/upgrade.php
index 4ab1956b3e4dd8664213d0abaa79b8f50d65bd73..12e3e7c1f9f9105358caa4e8bbf7dd67aacba68e 100644
--- a/htdocs/auth/saml/db/upgrade.php
+++ b/htdocs/auth/saml/db/upgrade.php
@@ -29,5 +29,10 @@ function xmldb_auth_saml_upgrade($oldversion=0) {
         set_config_plugin('auth', 'saml', 'version', '1.14.17');
     }
 
+    if ($oldversion < 2017122000) {
+        // Set library version to download
+        set_config_plugin('auth', 'saml', 'version', '1.15.0');
+    }
+
     return $status;
 }
diff --git a/htdocs/auth/saml/lib.php b/htdocs/auth/saml/lib.php
index 9d0f1589f888c1ad422c9d386cea17de43c5d20a..6305865d12004f1eba26dc589db4eeca5d28c960 100644
--- a/htdocs/auth/saml/lib.php
+++ b/htdocs/auth/saml/lib.php
@@ -363,7 +363,7 @@ class PluginAuthSaml extends PluginAuth {
 
     public static function install_auth_default() {
         // Set library version to download
-        set_config_plugin('auth', 'saml', 'version', '1.14.17');
+        set_config_plugin('auth', 'saml', 'version', '1.15.0');
     }
 
     private static function create_certificates($numberofdays = 3650) {
diff --git a/htdocs/auth/saml/version.php b/htdocs/auth/saml/version.php
index 173038d26649b017ce027b17cc23b263543ea4e2..9e5ffe6807bc8038d002641c37b2e3f3d648c72a 100644
--- a/htdocs/auth/saml/version.php
+++ b/htdocs/auth/saml/version.php
@@ -11,8 +11,8 @@
 defined('INTERNAL') || die();
 
 $config = new StdClass;
-$config->version = 2017102600;
-$config->release = '1.2.2';
+$config->version = 2017122000;
+$config->release = '1.2.3';
 $config->name = 'saml';
 $config->requires_config = 1;
 $config->requires_parent = 0;