diff --git a/.devcontainer/startup.sh b/.devcontainer/startup.sh
index bccf28f7..947f21ef 100755
--- a/.devcontainer/startup.sh
+++ b/.devcontainer/startup.sh
@@ -1,3 +1,3 @@
 #!/bin/bash
 curl -LsSf https://astral.sh/uv/install.sh | sh
-uv sync -vv
+uv sync -vv --frozen