diff --git a/pyproject.toml b/pyproject.toml
index bcf1bde0b11fbd1bb7f46cdfa013c8915dbc8f21..04e3070acec7e2dbcc10a4422c7ad9cc571bac89 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,8 +31,8 @@ issues = "http://mbees.med.uni-augsburg.de/gitlab/mbees/icartt_pypackage/issues"
 
 
 [tool.poetry.dependencies]
-python = ">=3.6,<4"
-numpy  = ">= 1.18"
+python = ">=3.8,<4"
+numpy  = ">= 1.22"
 
 [tool.poetry.dev-dependencies]
 pytest = "^5.2"