diff --git a/backend/Gemfile b/backend/Gemfile
index 45d0c68..1c5a4f9 100644
--- a/backend/Gemfile
+++ b/backend/Gemfile
@@ -4,7 +4,7 @@ gem "faraday", "~> 2.14"
 gem "sinatra", "~> 4.0"
 gem "puma", "~> 8.0"
 gem "langchainrb", "~> 0.19.5"
-gem "anthropic", "~> 1.44.0"
+gem "anthropic", "~> 1.45.0"
 gem "rake", "~> 13.4"
 gem "rack-cors", "~> 3.0"
 gem "omniauth", "~> 2.1"
diff --git a/backend/Gemfile.lock b/backend/Gemfile.lock
index bac67c5..3ccd713 100644
--- a/backend/Gemfile.lock
+++ b/backend/Gemfile.lock
@@ -3,7 +3,7 @@ GEM
   specs:
     addressable (2.8.9)
       public_suffix (>= 2.0.2, < 8.0)
-    anthropic (1.44.0)
+    anthropic (1.45.0)
       cgi
       connection_pool
       standardwebhooks
@@ -144,7 +144,7 @@ PLATFORMS
   x86_64-linux
 
 DEPENDENCIES
-  anthropic (~> 1.44.0)
+  anthropic (~> 1.45.0)
   faraday (~> 2.14)
   langchainrb (~> 0.19.5)
   minitest (~> 6.0)