diff --git a/pyproject.toml b/pyproject.toml
index 1b08162..77b0cc7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ dev = [
     "mysql-connector",
     "pre-commit",
     "pymssql",
-    "pysnmp-lextudio",
+    "pysnmp-lextudio==5.0.34",
     "pytest",
     "pytest-xdist==3.5.0",
     "redis",