diff --git a/crossbar-requirements.txt b/crossbar-requirements.txt
index 0afc9a143..31225555a 100644
--- a/crossbar-requirements.txt
+++ b/crossbar-requirements.txt
@@ -1,6 +1,6 @@
 -r requirements.txt
 setuptools>=38.0.0
 crossbar==20.12.3
-urllib3==1.24.3
+urllib3==1.26.6
 idna==2.5
 msgpack==1.0.0