diff --git a/pyproject.toml b/pyproject.toml
index 659246ce..04899c9a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ dev = ["pytest>=7.0.0", "ruff>=0.1.0", "mypy>=1.0.0"]
 agent-strands = [
     "strands-agents==1.16.0",
     "bedrock-agentcore[strands-agents]==1.0.6",
-    "mcp==1.23.0",
+    "mcp==1.28.1",
 ]
 
 # LangGraph agent dependencies (for local development)
@@ -48,7 +48,7 @@ agent-langgraph = [
     "langchain-aws==1.0.0",
     "langchain-mcp-adapters==0.1.13",
     "langgraph-checkpoint-aws==1.0.1",
-    "mcp==1.23.0",
+    "mcp==1.28.1",
 ]
 
 # All dependencies for local development