diff --git a/pyproject.toml b/pyproject.toml
index b1e53887..ed6b58a9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,7 @@ PyYAML = "^6.0.2"
 requests = "~2.32.3"
 pycvesearch = "^1.2"
 xmltodict = ">=0.13,<0.15"
-attackcti = "^0.4.0"
+attackcti = ">=0.4,<0.6"
 Jinja2 = "^3.1.4"
 questionary = "^2.0.1"
 docker = "^7.1.0"