diff --git a/requirements.txt b/requirements.txt
index ab0a6c1..105395c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,15 +4,15 @@ numpy >= 1.26.0;python_version=='3.12' # minimum working
 scipy >= 1.10.0;python_version=='3.10' # minimum recommended
 scipy >= 1.10.0;python_version=='3.11' # minimum recommended
 scipy >= 1.11.2;python_version=='3.12' # minimum working
-spglib >= 1.16.4;python_version=='3.10'
-spglib >= 1.16.4;python_version=='3.11'
-spglib >= 1.16.4;python_version=='3.12'
+spglib >= 1.16.4;python_version=='3.10' # minimum working
+spglib >= 1.16.4;python_version=='3.11' # minimum working
+spglib >= 1.16.4;python_version=='3.12' # minimum working
 defusedxml >= 0.6.0;python_version=='3.10' # minimum working
 defusedxml >= 0.6.0;python_version=='3.11' # minimum working
 defusedxml >= 0.6.0;python_version=='3.12' # minimum working
-tabulate >= 0.8.8;python_version=='3.10'
-tabulate >= 0.8.8;python_version=='3.11'
-tabulate >= 0.8.8;python_version=='3.12'
+tabulate >= 0.8.7;python_version=='3.10'
+tabulate >= 0.8.7;python_version=='3.11'
+tabulate >= 0.8.7;python_version=='3.12'
 flake8 >= 7.1.0
 pre-commit >= 3.7.1
 pylint >= 3.2.6