diff --git a/example/Gemfile b/example/Gemfile
index 5151523..2790067 100644
--- a/example/Gemfile
+++ b/example/Gemfile
@@ -6,7 +6,7 @@ ruby ">= 2.6.10"
 # Exclude problematic versions of cocoapods and activesupport that causes build failures.
 gem 'cocoapods', '>= 1.13', '!= 1.15.0', '!= 1.15.1'
 gem 'activesupport', '>= 6.1.7.5', '!= 7.1.0'
-gem 'xcodeproj', '< 1.26.0'
+gem 'xcodeproj', '< 1.29.0'
 gem 'concurrent-ruby', '< 1.3.4'
 
 # Ruby 3.4.0 has removed some libraries from the standard library.
diff --git a/example/Gemfile.lock b/example/Gemfile.lock
index 3405f48..2b1e73a 100644
--- a/example/Gemfile.lock
+++ b/example/Gemfile.lock
@@ -82,7 +82,7 @@ GEM
     minitest (5.27.0)
     molinillo (0.8.0)
     mutex_m (0.3.0)
-    nanaimo (0.3.0)
+    nanaimo (0.4.0)
     nap (1.1.0)
     netrc (0.11.0)
     nkf (0.3.0)
@@ -94,12 +94,14 @@ GEM
       ethon (>= 0.18.0)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
-    xcodeproj (1.25.1)
+    xcodeproj (1.28.1)
       CFPropertyList (>= 2.3.3, < 4.0)
       atomos (~> 0.1.3)
+      base64
       claide (>= 1.0.2, < 2.0)
       colored2 (~> 3.1)
-      nanaimo (~> 0.3.0)
+      nanaimo (~> 0.4.0)
+      nkf
       rexml (>= 3.3.6, < 4.0)
 
 PLATFORMS
@@ -114,7 +116,7 @@ DEPENDENCIES
   logger
   mutex_m
   nkf
-  xcodeproj (< 1.26.0)
+  xcodeproj (< 1.29.0)
 
 RUBY VERSION
    ruby 3.4.4p34