diff --git a/nix/build-all.py b/nix/build-all.py
index a8cb9cb1b0..4f71f7dae9 100644
--- a/nix/build-all.py
+++ b/nix/build-all.py
@@ -1384,7 +1384,7 @@ if "OpenCOLLADA" in targets:
 def python_consider_rc(python_version: str) -> str:
     # TODO: remove after Python 3.15 release.
     if python_version == "3.15.0":
-        python_version += "rc1"
+        python_version += "rc2"
     return python_version