diff --git a/applications/reference_implementations/shopping-concierge-agent/concierge_agent/mcp_cart_tools/requirements.txt b/applications/reference_implementations/shopping-concierge-agent/concierge_agent/mcp_cart_tools/requirements.txt
index 2b8c1a56..dd766f0b 100644
--- a/applications/reference_implementations/shopping-concierge-agent/concierge_agent/mcp_cart_tools/requirements.txt
+++ b/applications/reference_implementations/shopping-concierge-agent/concierge_agent/mcp_cart_tools/requirements.txt
@@ -1,5 +1,5 @@
 # MCP Cart Tools Dependencies
-mcp>=1.23.3
+mcp>=1.23.3,<2
 boto3>=1.40.8
 fastapi>=0.110.0
 uvicorn[standard]>=0.27.0
diff --git a/applications/reference_implementations/shopping-concierge-agent/concierge_agent/mcp_shopping_tools/requirements.txt b/applications/reference_implementations/shopping-concierge-agent/concierge_agent/mcp_shopping_tools/requirements.txt
index 1243d096..a866ef63 100644
--- a/applications/reference_implementations/shopping-concierge-agent/concierge_agent/mcp_shopping_tools/requirements.txt
+++ b/applications/reference_implementations/shopping-concierge-agent/concierge_agent/mcp_shopping_tools/requirements.txt
@@ -1,5 +1,5 @@
 # MCP Shopping Tools Dependencies
-mcp>=1.23.3
+mcp>=1.23.3,<2
 boto3>=1.40.8
 fastapi>=0.110.0
 uvicorn[standard]>=0.27.0
diff --git a/applications/reference_implementations/shopping-concierge-agent/concierge_agent/supervisor_agent/requirements.txt b/applications/reference_implementations/shopping-concierge-agent/concierge_agent/supervisor_agent/requirements.txt
index efe727da..b6c5fd3b 100644
--- a/applications/reference_implementations/shopping-concierge-agent/concierge_agent/supervisor_agent/requirements.txt
+++ b/applications/reference_implementations/shopping-concierge-agent/concierge_agent/supervisor_agent/requirements.txt
@@ -9,7 +9,7 @@ requests-aws4auth>=1.3.1
 strands-agents>=1.4.0
 strands-agents-tools>=0.2.3
 uv
-mcp
+mcp<2
 requests
 gql>=3.4.0
 requests>=2.28.0
diff --git a/platform/control_plane/service_approval/plugin/tools/kb-search-mcp/requirements.txt b/platform/control_plane/service_approval/plugin/tools/kb-search-mcp/requirements.txt
index a3fecbf5..71a2a8b9 100644
--- a/platform/control_plane/service_approval/plugin/tools/kb-search-mcp/requirements.txt
+++ b/platform/control_plane/service_approval/plugin/tools/kb-search-mcp/requirements.txt
@@ -1,2 +1,2 @@
-mcp>=1.0.0
+mcp>=1.0.0,<2
 boto3>=1.35.0