diff --git a/news/426.update.rst b/news/426.update.rst
new file mode 100644
index 00000000..6b3c0ac3
--- /dev/null
+++ b/news/426.update.rst
@@ -0,0 +1,3 @@
+Update ``mariadb`` hook to always include the ``decimal`` module as a
+hidden import, instead of implicitly relying on it being picked up due
+to import in some other, unrelated module.
diff --git a/src/_pyinstaller_hooks_contrib/hooks/stdhooks/hook-mariadb.py b/src/_pyinstaller_hooks_contrib/hooks/stdhooks/hook-mariadb.py
index 2b978b34..328d66d1 100644
--- a/src/_pyinstaller_hooks_contrib/hooks/stdhooks/hook-mariadb.py
+++ b/src/_pyinstaller_hooks_contrib/hooks/stdhooks/hook-mariadb.py
@@ -10,11 +10,9 @@
 # SPDX-License-Identifier: GPL-2.0-or-later
 # ------------------------------------------------------------------
 
-
-from PyInstaller.compat import is_py38
-
-
-# The MariaDB uses a .pyd file and uses import within its __init__.py
-# The decimal import seems to be hidden in Python version 3.7 and older
-if not is_py38:
-    hiddenimports = ['decimal']
+# The MariaDB uses a .pyd file that imports ``decimal`` module within its
+# module initialization function. On recent python versions (> 3.8), the decimal
+# module seems to be picked up nevertheless (presumably due to import in some
+# other module), but it is better not to rely on that, and ensure it is always
+# collected as a hidden import.
+hiddenimports = ['decimal']