diff --git a/group-by/bundler-multi-dir/app-a/Gemfile b/group-by/bundler-multi-dir/app-a/Gemfile
index 6b66fe6..8a8d8f1 100644
--- a/group-by/bundler-multi-dir/app-a/Gemfile
+++ b/group-by/bundler-multi-dir/app-a/Gemfile
@@ -14,5 +14,5 @@ gem 'rails', '7.0.4'
 # Latest: aws-sdk-core 3.241.x, aws-sdk-s3 1.213.x, aws-partitions 1.1211.x
 # Using older but compatible versions
 gem 'aws-sdk-core', '3.203.0'
-gem 'aws-sdk-s3', '1.160.0'
+gem 'aws-sdk-s3', '1.161.0'
 gem 'aws-partitions', '1.950.0'
diff --git a/group-by/bundler-multi-dir/app-a/Gemfile.lock b/group-by/bundler-multi-dir/app-a/Gemfile.lock
index b29de32..2fb81fe 100644
--- a/group-by/bundler-multi-dir/app-a/Gemfile.lock
+++ b/group-by/bundler-multi-dir/app-a/Gemfile.lock
@@ -76,7 +76,7 @@ GEM
     aws-sdk-kms (1.90.0)
       aws-sdk-core (~> 3, >= 3.203.0)
       aws-sigv4 (~> 1.5)
-    aws-sdk-s3 (1.160.0)
+    aws-sdk-s3 (1.161.0)
       aws-sdk-core (~> 3, >= 3.203.0)
       aws-sdk-kms (~> 1)
       aws-sigv4 (~> 1.5)
@@ -191,7 +191,7 @@ PLATFORMS
 DEPENDENCIES
   aws-partitions (= 1.950.0)
   aws-sdk-core (= 3.203.0)
-  aws-sdk-s3 (= 1.160.0)
+  aws-sdk-s3 (= 1.161.0)
   rails (= 7.0.4)
 
 RUBY VERSION
diff --git a/group-by/bundler-multi-dir/app-b/Gemfile b/group-by/bundler-multi-dir/app-b/Gemfile
index d31831a..4eea08d 100644
--- a/group-by/bundler-multi-dir/app-b/Gemfile
+++ b/group-by/bundler-multi-dir/app-b/Gemfile
@@ -14,5 +14,5 @@ gem 'rails', '7.0.6'
 # Latest: aws-sdk-core 3.241.x, aws-sdk-s3 1.213.x, aws-partitions 1.1211.x
 # Using older but compatible versions (slightly newer than app-a)
 gem 'aws-sdk-core', '3.210.0'
-gem 'aws-sdk-s3', '1.170.0'
+gem 'aws-sdk-s3', '1.177.0'
 gem 'aws-partitions', '1.995.0'
diff --git a/group-by/bundler-multi-dir/app-b/Gemfile.lock b/group-by/bundler-multi-dir/app-b/Gemfile.lock
index 708bdbe..fdc76f7 100644
--- a/group-by/bundler-multi-dir/app-b/Gemfile.lock
+++ b/group-by/bundler-multi-dir/app-b/Gemfile.lock
@@ -76,7 +76,7 @@ GEM
     aws-sdk-kms (1.96.0)
       aws-sdk-core (~> 3, >= 3.210.0)
       aws-sigv4 (~> 1.5)
-    aws-sdk-s3 (1.170.0)
+    aws-sdk-s3 (1.177.0)
       aws-sdk-core (~> 3, >= 3.210.0)
       aws-sdk-kms (~> 1)
       aws-sigv4 (~> 1.5)
@@ -191,7 +191,7 @@ PLATFORMS
 DEPENDENCIES
   aws-partitions (= 1.995.0)
   aws-sdk-core (= 3.210.0)
-  aws-sdk-s3 (= 1.170.0)
+  aws-sdk-s3 (= 1.177.0)
   rails (= 7.0.6)
 
 RUBY VERSION