diff --git a/requirements-docs.txt b/requirements-docs.txt
index 2de29229..b1575635 100644
--- a/requirements-docs.txt
+++ b/requirements-docs.txt
@@ -79,7 +79,7 @@ s3transfer==0.1.13
 six==1.11.0
 snowballstemmer==1.2.1    # via sphinx
 sphinx-rtd-theme==0.4.0
-sphinx==1.7.6
+sphinx==1.7.5
 sphinxcontrib-httpdomain==1.7.0
 sphinxcontrib-websupport==1.1.0  # via sphinx
 sqlalchemy-utils==0.33.3
diff --git a/requirements-tests.txt b/requirements-tests.txt
index 57292b12..417e22b7 100644
--- a/requirements-tests.txt
+++ b/requirements-tests.txt
@@ -8,9 +8,9 @@ asn1crypto==0.24.0        # via cryptography
 atomicwrites==1.1.5       # via pytest
 attrs==18.1.0             # via pytest
 aws-xray-sdk==0.95        # via moto
-boto3==1.7.61             # via moto
+boto3==1.7.56             # via moto
 boto==2.49.0              # via moto
-botocore==1.10.61         # via boto3, moto, s3transfer
+botocore==1.10.56         # via boto3, moto, s3transfer
 certifi==2018.4.16        # via requests
 cffi==1.11.5              # via cryptography
 chardet==3.0.4            # via requests
@@ -36,7 +36,7 @@ mock==2.0.0               # via moto
 more-itertools==4.2.0     # via pytest
 moto==1.3.3
 nose==1.3.7
-pbr==4.1.1                # via mock
+pbr==4.1.0                # via mock
 pluggy==0.6.0             # via pytest
 py==1.5.4                 # via pytest
 pyaml==17.12.1            # via moto
diff --git a/requirements.txt b/requirements.txt
index 3012ea6d..83e62bc5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@
 #
 #    pip-compile --no-index --output-file requirements.txt requirements.in
 #
-acme==0.26.1
+acme==0.26.0
 alembic-autogenerate-enums==0.0.2
 alembic==1.0.0            # via flask-migrate
 aniso8601==3.0.2          # via flask-restful
@@ -13,8 +13,8 @@ asn1crypto==0.24.0        # via cryptography
 asyncpool==1.0
 bcrypt==3.1.4             # via flask-bcrypt, paramiko
 blinker==1.4              # via flask-mail, flask-principal, raven
-boto3==1.7.61
-botocore==1.10.61         # via boto3, s3transfer
+boto3==1.7.56
+botocore==1.10.56         # via boto3, s3transfer
 certifi==2018.4.16
 cffi==1.11.5              # via bcrypt, cryptography, pynacl
 chardet==3.0.4            # via requests
@@ -36,7 +36,7 @@ flask-sqlalchemy==2.3.2
 flask==0.12
 future==0.16.0
 gunicorn==19.9.0
-idna==2.7                 # via cryptography, requests
+idna==2.7                 # via cryptography
 inflection==0.3.1
 itsdangerous==0.24        # via flask
 jinja2==2.10
@@ -51,7 +51,7 @@ marshmallow==2.15.3
 mock==2.0.0               # via acme
 ndg-httpsclient==0.5.0
 paramiko==2.4.1
-pbr==4.1.1                # via mock
+pbr==4.1.0                # via mock
 pem==18.1.0
 psycopg2==2.7.5
 pyasn1-modules==0.2.2     # via python-ldap