diff --git a/Gemfile b/Gemfile
index 495d163..1e836ac 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ gem 'dotenv'
 gem 'hashie'
 gem 'mocha'
 gem 'rexml'
-gem 'ruby-saml', '>= 1.9.0'
+gem 'ruby-saml', '>= 1.15.0'
 gem 'rack-test', '>= 2.0.0'
 gem 'rake'
 gem 'sinatra', '>= 3.0.4'
diff --git a/Gemfile.lock b/Gemfile.lock
index 41d349a..7fe8591 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -31,14 +31,14 @@ GEM
     jmespath (1.6.1)
     metaclass (0.0.4)
     method_source (0.9.2)
-    mini_portile2 (2.8.5)
+    mini_portile2 (2.8.7)
     minitest (5.19.0)
     mocha (1.7.0)
       metaclass (~> 0.0.1)
     mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
     nio4r (2.7.0)
-    nokogiri (1.16.2)
+    nokogiri (1.16.5)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     power_assert (2.0.2)
@@ -47,16 +47,17 @@ GEM
       method_source (~> 0.9.0)
     puma (6.4.2)
       nio4r (~> 2.0)
-    racc (1.7.3)
+    racc (1.8.0)
     rack (2.2.8.1)
     rack-protection (3.0.4)
       rack
     rack-test (2.0.2)
       rack (>= 1.3)
     rake (13.0.1)
-    rexml (3.2.5)
-    ruby-saml (1.14.0)
-      nokogiri (>= 1.10.5)
+    rexml (3.2.9)
+      strscan
+    ruby-saml (1.16.0)
+      nokogiri (>= 1.13.10)
       rexml
     ruby2_keywords (0.0.5)
     sinatra (3.0.4)
@@ -64,6 +65,7 @@ GEM
       rack (~> 2.2, >= 2.2.4)
       rack-protection (= 3.0.4)
       tilt (~> 2.0)
+    strscan (3.1.0)
     test-unit (3.5.7)
       power_assert
     tilt (2.0.11)
@@ -85,7 +87,7 @@ DEPENDENCIES
   rack-test (>= 2.0.0)
   rake
   rexml
-  ruby-saml (>= 1.9.0)
+  ruby-saml (>= 1.15.0)
   sinatra (>= 3.0.4)
   test-unit
 
@@ -93,4 +95,4 @@ RUBY VERSION
    ruby 3.2.2p223
 
 BUNDLED WITH
-   2.2.33
+   2.4.6