diff --git a/poetry.lock b/poetry.lock
index 4472548..e9623cd 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -917,5 +917,5 @@ files = [
 
 [metadata]
 lock-version = "2.0"
-python-versions = ">=3.8.1,<3.12"
-content-hash = "0dd31333830816ee4a030f3b6c037ad46687aaf7e432afdaeb0d05cca4c5d14a"
+python-versions = ">=3.9,<3.12"
+content-hash = "b7230515d9d61d63e3431165ca00524ebdb14c192ee6d85a04154e99bcc8c073"
diff --git a/pyproject.toml b/pyproject.toml
index 8e7dbc1..6bfe248 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ classifiers = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.8.1,<3.12"
+python = ">=3.9,<3.12"
 ezodf = "^0.3.2"
 lxml = "^4.9.2"
 pandas = "^1.5.2"