diff --git a/pyproject.toml b/pyproject.toml
index 63745c31f67..abc2635c875 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -102,7 +102,7 @@ optional = [
     "ase>=3.23.0",
     "beautifulsoup4",
     # BoltzTraP2 build fails on Windows GitHub runners
-    "BoltzTraP2>=24.9.3 ; platform_system != 'Windows'",
+    "BoltzTraP2>=24.9.4 ; platform_system != 'Windows'",
     "chemview>=0.6",
     "chgnet>=0.3.8",
     "f90nml>=1.1.2",