diff --git a/labs/mcp-a2a-agents/src/mcp_sk_servers/src/pyproject.toml b/labs/mcp-a2a-agents/src/mcp_sk_servers/src/pyproject.toml
index 70553e61..e43971ae 100644
--- a/labs/mcp-a2a-agents/src/mcp_sk_servers/src/pyproject.toml
+++ b/labs/mcp-a2a-agents/src/mcp_sk_servers/src/pyproject.toml
@@ -5,7 +5,7 @@ description = "MCP semantic-kernel servers (mcp-a2a-agents lab)."
 requires-python = ">=3.12"
 dependencies = [
     # MCP Labs
-    "mcp==1.11.0",
+    "mcp==1.28.1",
     "semantic-kernel==1.34.0",
     "semantic-kernel[mcp]",
     "openai",