diff --git a/src/bsk_rl/envs/general_satellite_tasking/simulation/environment.py b/src/bsk_rl/envs/general_satellite_tasking/simulation/environment.py
index 3c661b53..1b83a495 100644
--- a/src/bsk_rl/envs/general_satellite_tasking/simulation/environment.py
+++ b/src/bsk_rl/envs/general_satellite_tasking/simulation/environment.py
@@ -121,11 +121,8 @@ def _set_gravity_bodies(
         self.planet.isCentralBody = (
             True  # ensure this is the central gravitational body
         )
-        self.planet.useSphericalHarmParams = True
-        simIncludeGravBody.loadGravFromFile(
-            bsk_path + "/supportData/LocalGravData/GGM03S.txt",
-            self.planet.spherHarm,
-            10,
+        self.planet.useSphericalHarmonicsGravityModel(
+            bsk_path + "/supportData/LocalGravData/GGM03S.txt", 10
         )
 
         # setup Spice interface for some solar system bodies
diff --git a/src/bsk_rl/envs/general_satellite_tasking/utils/orbital.py b/src/bsk_rl/envs/general_satellite_tasking/utils/orbital.py
index 37236777..c048b0f9 100644
--- a/src/bsk_rl/envs/general_satellite_tasking/utils/orbital.py
+++ b/src/bsk_rl/envs/general_satellite_tasking/utils/orbital.py
@@ -178,9 +178,8 @@ def init_simulator(self) -> None:
         planet = self.gravFactory.createEarth()
         self.gravFactory.createSun()
         planet.isCentralBody = True
-        planet.useSphericalHarmParams = True
-        simIncludeGravBody.loadGravFromFile(
-            bskPath + "/supportData/LocalGravData/GGM03S.txt", planet.spherHarm, 10
+        planet.useSphericalHarmonicsGravityModel(
+            bskPath + "/supportData/LocalGravData/GGM03S.txt", 10
         )
         UTCInit = self.utc_init
         self.gravFactory.createSpiceInterface(