diff --git a/cldf/requirements.txt b/cldf/requirements.txt
index cc96c76..c2d2ee2 100644
--- a/cldf/requirements.txt
+++ b/cldf/requirements.txt
@@ -5,7 +5,7 @@ cldfbench==1.0.2
 cldfcatalog==1.3.0
 clldutils==3.5.0
 colorlog==4.1.0
-cryptography==2.8
+cryptography==3.2
 csvw==1.6.0
 decorator==4.4.1
 defusedxml==0.6.0