diff --git a/Dockerfile b/Dockerfile
index cb112e8..6b09cfc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,7 +19,7 @@ RUN cmake --preset=ci-docker \
 
 
 # Main stage
-FROM python:3.11
+FROM python:3.11-slim
 
 RUN pip install numpy pandas polars scipy scikit-learn
 
diff --git a/src/lint/lint.cpp b/src/lint/lint.cpp
index 022e039..b9a1037 100644
--- a/src/lint/lint.cpp
+++ b/src/lint/lint.cpp
@@ -10,7 +10,6 @@ lint(const std::string& uid, const std::string& algo_id)
         return "Could not find algorithm";
     }
 
-    pybind11::scoped_interpreter guard{};
     bool e = nutc::pywrapper::create_api_module(nutc::mock_api::getMarketFunc());
     if (!e) {
         log_e(linting, "Failed to create API module");
diff --git a/src/main.cpp b/src/main.cpp
index 1a67327..617723f 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -76,6 +76,8 @@ main(int argc, const char** argv)
 
     crow::SimpleApp app;
 
+    pybind11::scoped_interpreter guard{};
+
     CROW_ROUTE(app, "/")
     ([&](const crow::request& req) {
         if (!req.url_params.get("uid")) {
diff --git a/src/pywrapper/runtime.cpp b/src/pywrapper/runtime.cpp
index 7a9283e..2b4f931 100644
--- a/src/pywrapper/runtime.cpp
+++ b/src/pywrapper/runtime.cpp
@@ -16,6 +16,9 @@ create_api_module(
             "nutc_api", "Official NUTC Exchange API", new py::module::module_def
         );
         m.def("publish_market_order", publish_market_order);
+        py::module_::import("numpy");
+        py::module_::import("scipy");
+        py::module_::import("pandas");
 
         py::module_ sys = py::module_::import("sys");
         py::dict sys_modules = sys.attr("modules").cast<py::dict>();