diff --git a/requirements.txt b/requirements.txt
index c6dd58a..83410e2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,3 +24,4 @@
 defusedxml>=0.7.1 # PSFL
 fasteners>=0.16.0 # Apache-2.0
 tenacity>=4.4.0 # Apache-2.0
+websocket-client # LGPLv2+