diff --git a/mcp-client-ruby/Gemfile.lock b/mcp-client-ruby/Gemfile.lock
index c8b0f0af..eaddaa96 100644
--- a/mcp-client-ruby/Gemfile.lock
+++ b/mcp-client-ruby/Gemfile.lock
@@ -1,9 +1,10 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    anthropic (1.78.0)
+    anthropic (1.80.0)
       base64 (~> 0.1)
       connection_pool (>= 2, < 4)
+      opentelemetry-api (>= 1.2.4, < 2)
       standardwebhooks (~> 1.0)
     base64 (0.3.0)
     bigdecimal (4.1.3)
@@ -15,8 +16,11 @@ GEM
       hana (~> 1.3)
       regexp_parser (~> 2.0)
       simpleidn (~> 0.2)
-    mcp (1.7.0)
+    logger (1.7.0)
+    mcp (1.8.0)
       json_schemer (>= 2.4)
+    opentelemetry-api (1.11.1)
+      logger
     regexp_parser (2.13.1)
     simpleidn (0.3.0)
     standardwebhooks (1.1.0)
diff --git a/weather-server-ruby/Gemfile.lock b/weather-server-ruby/Gemfile.lock
index f8ba4847..6d59dfb2 100644
--- a/weather-server-ruby/Gemfile.lock
+++ b/weather-server-ruby/Gemfile.lock
@@ -8,7 +8,7 @@ GEM
       hana (~> 1.3)
       regexp_parser (~> 2.0)
       simpleidn (~> 0.2)
-    mcp (1.7.0)
+    mcp (1.8.0)
       json_schemer (>= 2.4)
     regexp_parser (2.13.1)
     simpleidn (0.3.0)