diff --git a/tests/unit/test_batch_study.py b/tests/unit/test_batch_study.py
index 89e6bd62b0..c04e71b5cb 100644
--- a/tests/unit/test_batch_study.py
+++ b/tests/unit/test_batch_study.py
@@ -93,14 +93,18 @@ def test_create_gif(self):
         bs = pybamm.BatchStudy({"spm": pybamm.lithium_ion.SPM()})
         bs.solve([0, 10])
 
+        # Create a temporary file name
+        test_stub = "batch_study_test"
+        test_file = f"{test_stub}.gif"
+
         # create a GIF before calling the plot method
-        bs.create_gif(number_of_images=3, duration=1)
+        bs.create_gif(number_of_images=3, duration=1, output_filename=test_file)
 
         # create a GIF after calling the plot method
         bs.plot(testing=True)
-        bs.create_gif(number_of_images=3, duration=1)
+        bs.create_gif(number_of_images=3, duration=1, output_filename=test_file)
 
-        os.remove("plot.gif")
+        os.remove(test_file)
 
 
 if __name__ == "__main__":
diff --git a/tests/unit/test_plotting/test_quick_plot.py b/tests/unit/test_plotting/test_quick_plot.py
index 3415777ee8..418cee8765 100644
--- a/tests/unit/test_plotting/test_quick_plot.py
+++ b/tests/unit/test_plotting/test_quick_plot.py
@@ -290,11 +290,12 @@ def test_spm_simulation(self):
         quick_plot.plot(0)
 
         # test creating a GIF
-        quick_plot.create_gif(number_of_images=3, duration=3)
-        assert not os.path.exists("plot*.png")
-        assert os.path.exists("plot.gif")
-        os.remove("plot.gif")
-
+        test_stub = "spm_sim_test"
+        test_file = f"{test_stub}.gif"
+        quick_plot.create_gif(number_of_images=3, duration=3, output_filename=test_file)
+        assert not os.path.exists(f"{test_stub}*.png")
+        assert os.path.exists(test_file)
+        os.remove(test_file)
         pybamm.close_plots()
 
     def test_loqs_spme(self):
diff --git a/tests/unit/test_simulation.py b/tests/unit/test_simulation.py
index d0926e5c94..f008c7ff2a 100644
--- a/tests/unit/test_simulation.py
+++ b/tests/unit/test_simulation.py
@@ -343,14 +343,18 @@ def test_create_gif(self):
         sim = pybamm.Simulation(pybamm.lithium_ion.SPM())
         sim.solve(t_eval=[0, 10])
 
+        # Create a temporary file name
+        test_stub = "test_sim"
+        test_file = f"{test_stub}.gif"
+
         # create a GIF without calling the plot method
-        sim.create_gif(number_of_images=3, duration=1)
+        sim.create_gif(number_of_images=3, duration=1, output_filename=test_file)
 
         # call the plot method before creating the GIF
         sim.plot(testing=True)
-        sim.create_gif(number_of_images=3, duration=1)
+        sim.create_gif(number_of_images=3, duration=1, output_filename=test_file)
 
-        os.remove("plot.gif")
+        os.remove(test_file)
 
     def test_drive_cycle_interpolant(self):
         model = pybamm.lithium_ion.SPM()