diff --git a/trezor-signer/requirements.txt b/trezor-signer/requirements.txt
index 8cc035b..39ef3ef 100644
--- a/trezor-signer/requirements.txt
+++ b/trezor-signer/requirements.txt
@@ -19,5 +19,5 @@ PyYAML==3.13
 requests==2.21.0
 six==1.12.0
 typing-extensions==3.7.2
-urllib3==1.24.1
+urllib3==1.26.5
 pytest==4.3.0
\ No newline at end of file