diff --git a/pyproject.toml b/pyproject.toml
index 5014cf3..dab078e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ dploot = "dploot.entry:main"
 
 [tool.poetry.dependencies]
 python = "^3.10.0"
-impacket = ">=0.12.0"
+impacket = "==0.12.0"
 cryptography = ">=40.0.1"
 pyasn1 = ">=0.4.8"
 lxml = ">=5.0"