diff --git a/backend/requirements-min.txt b/backend/requirements-min.txt
index 0ac301f8ea..bc4732fc1d 100644
--- a/backend/requirements-min.txt
+++ b/backend/requirements-min.txt
@@ -38,7 +38,7 @@ RestrictedPython==8.0
 loguru==0.7.3
 asgiref==3.8.1
 
-mcp==1.14.1
+mcp==1.21.2
 openai
 
 langchain==0.3.27
diff --git a/backend/requirements.txt b/backend/requirements.txt
index c9edd15079..8d6758e456 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -37,7 +37,7 @@ asgiref==3.8.1
 
 # AI libraries
 tiktoken
-mcp==1.14.1
+mcp==1.21.2
 
 openai
 anthropic
diff --git a/pyproject.toml b/pyproject.toml
index 5ce2ed59d3..e7822eee71 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,7 +47,7 @@ dependencies = [
     "asgiref==3.8.1",
 
     "tiktoken",
-    "mcp==1.14.1",
+    "mcp==1.21.2",
 
     "openai",
     "anthropic",