diff --git a/CHANGELOG.md b/CHANGELOG.md
index 07ddd738fa0..951053721e6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## 3.1.0 (unreleased)
+## 3.1.0 (2020-06-23)
 
 ### New features
  * `SafeCast`: added functions to downcast signed integers (e.g. `toInt32`), improving usability of `SignedSafeMath`. ([#2243](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2243))
diff --git a/contracts/package.json b/contracts/package.json
index e82ab08817b..0592d6a2ddb 100644
--- a/contracts/package.json
+++ b/contracts/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@openzeppelin/contracts",
-  "version": "3.1.0-rc.0",
+  "version": "3.1.0",
   "description": "Secure Smart Contract library for Solidity",
   "files": [
     "**/*.sol",
diff --git a/package-lock.json b/package-lock.json
index f825f99dd9d..03d4e12219e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "openzeppelin-solidity",
-  "version": "3.1.0-rc.0",
+  "version": "3.1.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index a1260889f89..18a00c6dc22 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "openzeppelin-solidity",
-  "version": "3.1.0-rc.0",
+  "version": "3.1.0",
   "description": "Secure Smart Contract library for Solidity",
   "files": [
     "/contracts/**/*.sol",