diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 54cb3778..47eb0988 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -4,10 +4,12 @@ Changelog
 This document describes changes between each past release.
 
 
-3.2.0 (unreleased)
+3.1.5 (2016-05-17)
 ------------------
 
-- Nothing changed yet.
+**Bug fixes**
+
+- Prevent the browser to cache server responses between two sessions. (#593)
 
 
 3.1.4 (2016-05-10)
diff --git a/cliquet_docs/conf.py b/cliquet_docs/conf.py
index 3b1a5ac9..adb695df 100644
--- a/cliquet_docs/conf.py
+++ b/cliquet_docs/conf.py
@@ -72,7 +72,7 @@ def setup(app):
 # The short X.Y version.
 version = '3.1'
 # The full version, including alpha/beta/rc tags.
-release = '3.1.4'
+release = '3.1.5'
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
diff --git a/requirements.txt b/requirements.txt
index 01b83f39..70c58ad1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ colander==1.2
 colorama==0.3.7
 contextlib2==0.5.3
 cornice==1.2.1
-enum34==1.1.5
+enum34==1.1.6
 iso8601==0.1.11
 newrelic==2.64.0.48
 PasteDeploy==1.5.2
@@ -11,13 +11,13 @@ pyramid==1.6.1
 pyramid-multiauth==0.8.0
 pyramid-tm==0.12.1
 python-dateutil==2.5.3
-raven==5.16.0
+raven==5.17.0
 redis==2.10.5
 repoze.lru==0.6
 requests==2.10.0
 simplejson==3.8.2
 six==1.10.0
-SQLAlchemy==1.0.12
+SQLAlchemy==1.0.13
 statsd==3.2.1
 structlog==16.0.0
 transaction==1.5.0
@@ -26,7 +26,6 @@ ujson==1.35
 venusian==1.0
 WebOb==1.6.0
 Werkzeug==0.11.9
-wheel==0.24.0
 zope.deprecation==4.1.2
 zope.interface==4.1.3
 zope.sqlalchemy==0.7.6
diff --git a/setup.py b/setup.py
index 8b43d283..3997a64d 100644
--- a/setup.py
+++ b/setup.py
@@ -66,7 +66,7 @@
 
 
 setup(name='cliquet',
-      version='3.2.0.dev0',
+      version='3.1.5',
       description='Micro service API toolkit',
       long_description=README + "\n\n" + CHANGELOG + "\n\n" + CONTRIBUTORS,
       license='Apache License (2.0)',