diff --git a/check_dna_c/requirements.txt b/check_dna_c/requirements.txt
index 2b15c38..822996a 100644
--- a/check_dna_c/requirements.txt
+++ b/check_dna_c/requirements.txt
@@ -6,5 +6,5 @@ DateTime==4.3
 idna==2.8
 pytz==2019.3
 requests==2.22.0
-urllib3==1.25.7
+urllib3==1.26.5
 zope.interface==5.1.0