diff --git a/requirements.txt b/requirements.txt
index 5ce40ca..da94275 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ cffi==1.13.2
 chardet==3.0.4
 Click==7.0
 coverage==5.0.3
-cryptography==2.8
+cryptography==3.3.2
 dictobj==0.4
 enum34==1.1.6
 Flask==1.1.1
diff --git a/test_requirements.txt b/test_requirements.txt
index 5105ad0..37442cd 100644
--- a/test_requirements.txt
+++ b/test_requirements.txt
@@ -4,7 +4,7 @@ cffi==1.13.2
 chardet==3.0.4
 Click==7.0
 coverage==5.0.3
-cryptography==2.8
+cryptography==3.3.2
 dictobj==0.4
 enum34==1.1.6
 Flask==1.1.1