diff --git a/requirements.txt b/requirements.txt
index 811f091..fbbce60 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ cffi==1.12.3
 chardet==3.0.4
 cloudpickle==1.2.1
 colorama==0.4.1
-cryptography==2.1.4
+cryptography==3.2
 cycler==0.10.0
 dask==1.2.0
 decorator==4.4.0
diff --git a/requirements_python3.7.txt b/requirements_python3.7.txt
index 811f091..fbbce60 100644
--- a/requirements_python3.7.txt
+++ b/requirements_python3.7.txt
@@ -8,7 +8,7 @@ cffi==1.12.3
 chardet==3.0.4
 cloudpickle==1.2.1
 colorama==0.4.1
-cryptography==2.1.4
+cryptography==3.2
 cycler==0.10.0
 dask==1.2.0
 decorator==4.4.0
diff --git a/requirements_python3.8.txt b/requirements_python3.8.txt
index 4bfe691..6b664b4 100644
--- a/requirements_python3.8.txt
+++ b/requirements_python3.8.txt
@@ -8,7 +8,7 @@ cffi==1.14.0
 chardet==3.0.4
 cloudpickle==1.2.1
 colorama==0.4.1
-cryptography==2.9.2
+cryptography==3.2
 cycler==0.10.0
 dataclasses==0.6
 decorator==4.4.0