diff --git a/pyproject.toml b/pyproject.toml
index 7e2d6a1..c83af26 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,7 +21,7 @@ stix2 = "3.0.1"
 stix2-patterns = "1.3.2"
 pyopenssl = "24.1.0"
 beautifulsoup4 = "4.12.3"
-pyasn1 = "0.6.0"
+pyasn1 = "0.6.3"
 async-timeout = "4.0.3"
 
 [build-system]