diff --git a/formant_ros2_adapter/package.xml b/formant_ros2_adapter/package.xml
index 8e21713..1ec4792 100644
--- a/formant_ros2_adapter/package.xml
+++ b/formant_ros2_adapter/package.xml
@@ -11,8 +11,8 @@
   <buildtool_depend>ament_cmake_python</buildtool_depend>
 
   <depend>rclpy</depend>
-  <depend>python-lzf-pip</depend>
-  <depend>python3-numpy</depend>
+  <exec_depend>python-lzf-pip</exec_depend>
+  <exec_depend>python3-numpy</exec_depend>
 
   <test_depend>ament_lint_auto</test_depend>
   <test_depend>ament_lint_common</test_depend>