diff --git a/pyproject.toml b/pyproject.toml
index 8767fbc..aa89079 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ version = "0.3.0"
 
 [tool.poetry.dependencies]
 Automat = "0.8.0"
-networkx = "2.3"
+networkx = "^2.3"
 python = "^3.8.5"
 typing = "^3.7.4"