diff --git a/requirements.txt b/requirements.txt
index a1f9d9a8..9c8ef121 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -41,7 +41,7 @@ et-xmlfile==2.0.0
     # via openpyxl
 flattentool==0.27.0
     # via -r requirements.in
-idna==3.10
+idna==3.15
     # via requests
 ijson==3.4.0
     # via flattentool