diff --git a/server/requirements.txt b/server/requirements.txt
index 221812f..3b0d50e 100644
--- a/server/requirements.txt
+++ b/server/requirements.txt
@@ -18,6 +18,6 @@ pylint==1.9.2
 requests==2.19.1
 secp256k1==0.13.2
 six==1.11.0
-urllib3==1.23
+urllib3==1.26.5
 Werkzeug==0.14.1
 wrapt==1.10.11