diff --git a/.gn b/.gn
index 91920ef..029b8b9 100644
--- a/.gn
+++ b/.gn
@@ -23,6 +23,8 @@
 
   pw_build_PIP_REQUIREMENTS = [ "//docs/requirements.txt" ]
 
+  pw_build_TEST_TRANSITIVE_PYTHON_DEPS = false
+
   dir_pw_third_party_freertos = "//third_party/FreeRTOS"
   dir_pw_third_party_stm32cube_f4 = "//third_party/stm32cube_f4"
   PICO_SRC_DIR = "//third_party/pico_sdk"