diff --git a/angle_optimizer.patch b/angle_optimizer.patch
deleted file mode 100644
index 721cf1bf..00000000
--- a/angle_optimizer.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-diff --git a/src/icesat2_tracks/ICEsat2_SI_tools/angle_optimizer.py b/src/icesat2_tracks/ICEsat2_SI_tools/angle_optimizer.py
-index fa167fc..014be17 100644
---- a/src/icesat2_tracks/ICEsat2_SI_tools/angle_optimizer.py
-+++ b/src/icesat2_tracks/ICEsat2_SI_tools/angle_optimizer.py
-@@ -208,7 +208,7 @@ class sample_with_mcmc:
-         fitting_args, fitting_kargs  = self.fitting_args, self.fitting_kargs
-         self.fitter = self.LM.minimize(self.objective_func, self.params,  method=method,
-                         args=fitting_args, kws=fitting_kargs ,
--                        nwalkers=self.nwalkers, steps=steps, pos= self.seeds, **kargs)
-+                        nwalkers=self.nwalkers, steps=steps, pos= self.seeds,nan_policy='omit' , **kargs)
-         if verbose:
-             print(self.LM.report_fit(self.fitter))
-             print('results at self.fitter')