diff --git a/swifr_pkg/requirements.txt b/swifr_pkg/requirements.txt
index 3e2d876..d611543 100644
--- a/swifr_pkg/requirements.txt
+++ b/swifr_pkg/requirements.txt
@@ -32,7 +32,7 @@ conda==4.6.14
 conda-build==3.17.6
 conda-verify==3.1.1
 contextlib2==0.5.5
-cryptography==2.4.2
+cryptography==39.0.1
 cycler==0.10.0
 Cython==0.29.2
 cytoolz==0.9.0.1