diff --git a/manim/mobject/svg/svg_mobject.py b/manim/mobject/svg/svg_mobject.py
index 722efb29..66e99377 100644
--- a/manim/mobject/svg/svg_mobject.py
+++ b/manim/mobject/svg/svg_mobject.py
@@ -2,6 +2,7 @@
 
 from __future__ import annotations
 
+import io
 import os
 from pathlib import Path
 from typing import Any, Self
@@ -199,12 +200,14 @@ class SVGMobject(VMobject, metaclass=ConvertToOpenGL):
         file_path = self.get_file_path()
         element_tree = ET.parse(file_path)
         new_tree = self.modify_xml_tree(element_tree)  # type: ignore[arg-type]
-        # Create a temporary svg file to dump modified svg to be parsed
-        modified_file_path = file_path.with_name(f"{file_path.stem}_{file_path.suffix}")
-        new_tree.write(modified_file_path)
-
-        svg = se.SVG.parse(modified_file_path)
-        modified_file_path.unlink()
+        # Dump the modified svg to an in-memory buffer to be parsed.
+        # Writing it next to the original file races when the same svg is
+        # loaded concurrently (e.g. by parallel test workers).
+        buffer = io.BytesIO()
+        new_tree.write(buffer)
+        buffer.seek(0)
+
+        svg = se.SVG.parse(buffer)
 
         mobjects, mobject_dict = self.get_mobjects_from(svg)
         self.add(*mobjects)