diff --git a/requirements.txt b/requirements.txt
index 1c6ab8f..d23653a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ mpmath==1.1.0
 numpy==1.17.3
 matplotlib==3.0.2
 sympy==1.5.1
-cryptography==2.8
+cryptography==3.2
 seaborn==0.9.0
 pyOpenSSL==19.0.0
 brotli==1.0.7
diff --git a/requirements/dev.txt b/requirements/dev.txt
index 1c6ab8f..d23653a 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -5,7 +5,7 @@ mpmath==1.1.0
 numpy==1.17.3
 matplotlib==3.0.2
 sympy==1.5.1
-cryptography==2.8
+cryptography==3.2
 seaborn==0.9.0
 pyOpenSSL==19.0.0
 brotli==1.0.7
diff --git a/requirements/prod.txt b/requirements/prod.txt
index 1c6ab8f..d23653a 100644
--- a/requirements/prod.txt
+++ b/requirements/prod.txt
@@ -5,7 +5,7 @@ mpmath==1.1.0
 numpy==1.17.3
 matplotlib==3.0.2
 sympy==1.5.1
-cryptography==2.8
+cryptography==3.2
 seaborn==0.9.0
 pyOpenSSL==19.0.0
 brotli==1.0.7
diff --git a/requirements/test.txt b/requirements/test.txt
index 1c6ab8f..d23653a 100644
--- a/requirements/test.txt
+++ b/requirements/test.txt
@@ -5,7 +5,7 @@ mpmath==1.1.0
 numpy==1.17.3
 matplotlib==3.0.2
 sympy==1.5.1
-cryptography==2.8
+cryptography==3.2
 seaborn==0.9.0
 pyOpenSSL==19.0.0
 brotli==1.0.7
diff --git a/setup.py b/setup.py
index 3f1041c..8b44f67 100644
--- a/setup.py
+++ b/setup.py
@@ -17,7 +17,7 @@
     "numpy==1.16.4",
     "matplotlib==3.0.2",
     "sympy==1.4",
-    "cryptography==2.7",
+    "cryptography==3.2",
     "seaborn==0.9.0",
     "pyOpenSSL==19.0.0",
     "brotli==1.0.7",