diff --git a/dicom/requirements.txt b/dicom/requirements.txt
index 45507d2..dcbaa59 100644
--- a/dicom/requirements.txt
+++ b/dicom/requirements.txt
@@ -1,3 +1,3 @@
 requests==2.20.0
 tqdm==4.23.3
-urllib3==1.24.2
+urllib3==1.26.5