diff --git a/requirements-docs.txt b/requirements-docs.txt
index 6b49b64d..812a947f 100644
--- a/requirements-docs.txt
+++ b/requirements-docs.txt
@@ -44,7 +44,7 @@ gunicorn==19.9.0
 idna==2.7
 imagesize==1.1.0          # via sphinx
 inflection==0.3.1
-itsdangerous==1.0.0
+itsdangerous==1.1.0
 jinja2==2.10
 jmespath==0.9.3
 josepy==1.1.0
diff --git a/requirements-tests.txt b/requirements-tests.txt
index a851e620..2ad412db 100644
--- a/requirements-tests.txt
+++ b/requirements-tests.txt
@@ -29,7 +29,7 @@ flask==1.0.2              # via pytest-flask
 freezegun==0.3.11
 future==0.16.0            # via python-jose
 idna==2.7                 # via cryptography, requests
-itsdangerous==1.0.0       # via flask
+itsdangerous==1.1.0       # via flask
 jinja2==2.10              # via flask, moto
 jmespath==0.9.3           # via boto3, botocore
 jsondiff==1.1.1           # via moto
diff --git a/requirements.txt b/requirements.txt
index c8cb2e2e..ffe6372f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -41,7 +41,7 @@ future==0.16.0
 gunicorn==19.9.0
 idna==2.7                 # via cryptography, requests
 inflection==0.3.1
-itsdangerous==1.0.0       # via flask
+itsdangerous==1.1.0       # via flask
 jinja2==2.10
 jmespath==0.9.3           # via boto3, botocore
 josepy==1.1.0             # via acme