diff --git a/python/packages/autogen-studio/pyproject.toml b/python/packages/autogen-studio/pyproject.toml
index 869bdb78b8f6..6e5a8677816f 100644
--- a/python/packages/autogen-studio/pyproject.toml
+++ b/python/packages/autogen-studio/pyproject.toml
@@ -37,6 +37,7 @@ dependencies = [
     "autogen-agentchat==0.4.0",
     "autogen-ext[magentic-one]==0.4.0",
     "azure-identity",
+    "tiktoken"
 ]
 optional-dependencies = {web = ["fastapi", "uvicorn"], database = ["psycopg"]}
 
diff --git a/python/uv.lock b/python/uv.lock
index 95db2f3c8185..bdecfd1f9ff0 100644
--- a/python/uv.lock
+++ b/python/uv.lock
@@ -670,6 +670,7 @@ dependencies = [
     { name = "python-dotenv" },
     { name = "pyyaml" },
     { name = "sqlmodel" },
+    { name = "tiktoken" },
     { name = "typer" },
     { name = "uvicorn" },
     { name = "websockets" },
@@ -703,6 +704,7 @@ requires-dist = [
     { name = "python-dotenv" },
     { name = "pyyaml" },
     { name = "sqlmodel" },
+    { name = "tiktoken" },
     { name = "typer" },
     { name = "uvicorn" },
     { name = "uvicorn", marker = "extra == 'web'" },