diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3e63ea9..bc7da71 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.4)
 
-project(olm VERSION 3.1.0 LANGUAGES CXX C)
+project(olm VERSION 3.1.1 LANGUAGES CXX C)
 
 option(OLM_TESTS "Build tests" ON)
 option(BUILD_SHARED_LIBS "Build as a shared library" ON)
diff --git a/OLMKit.podspec b/OLMKit.podspec
index d9c43e5..1aa2bd3 100644
--- a/OLMKit.podspec
+++ b/OLMKit.podspec
@@ -3,7 +3,7 @@ Pod::Spec.new do |s|
   # The libolm version
   MAJOR = 3
   MINOR = 1
-  PATCH = 0
+  PATCH = 1
 
   s.name         = "OLMKit"
   s.version      = "#{MAJOR}.#{MINOR}.#{PATCH}"
diff --git a/android/olm-sdk/build.gradle b/android/olm-sdk/build.gradle
index 456880b..ade227e 100644
--- a/android/olm-sdk/build.gradle
+++ b/android/olm-sdk/build.gradle
@@ -9,9 +9,9 @@ android {
     defaultConfig {
         minSdkVersion 11
         targetSdkVersion 21
-        versionCode 310
-        versionName "3.1.0"
-        version "3.1.0"
+        versionCode 311
+        versionName "3.1.1"
+        version "3.1.1"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
     buildTypes {
diff --git a/common.mk b/common.mk
index c8f70b2..3f18fb4 100644
--- a/common.mk
+++ b/common.mk
@@ -1,4 +1,4 @@
 
 MAJOR := 3
 MINOR := 1
-PATCH := 0
+PATCH := 1
diff --git a/javascript/package.json b/javascript/package.json
index fe45152..8d590e2 100644
--- a/javascript/package.json
+++ b/javascript/package.json
@@ -1,6 +1,6 @@
 {
   "name": "olm",
-  "version": "3.1.0",
+  "version": "3.1.1",
   "description": "An implementation of the Double Ratchet cryptographic ratchet",
   "main": "olm.js",
   "files": [
diff --git a/python/olm/__version__.py b/python/olm/__version__.py
index 1fde285..e4ec665 100644
--- a/python/olm/__version__.py
+++ b/python/olm/__version__.py
@@ -2,7 +2,7 @@ __title__ = "python-olm"
 __description__ = ("python CFFI bindings for the olm "
                    "cryptographic ratchet library")
 __url__ = "https://github.com/poljar/python-olm"
-__version__ = "3.1.0"
+__version__ = "3.1.1"
 __author__ = "Damir Jelić"
 __author_email__ = "poljar@termina.org.uk"
 __license__ = "Apache 2.0"