diff --git a/contracts/upgradeable/IRegistry.sol b/contracts/upgradeable/IRegistry.sol
index 1a55c69..97d4d0f 100644
--- a/contracts/upgradeable/IRegistry.sol
+++ b/contracts/upgradeable/IRegistry.sol
@@ -20,6 +20,13 @@ interface IRegistry {
   */
   event VersionAdded(bytes32 name, uint version, address implementation);
 
+  /**
+  * @dev This event will be emitted every time a proxy is upgraded to a new version
+  * @param name of the contract, as specified in the registry
+  * @param version representing the version name of the registered implementation
+  */
+  event ProxyImplementationUpgraded(bytes32 name, uint version);
+
   /**
   * @dev Registers a new version with its implementation address
   * @param name of the contract, as specified in the registry
diff --git a/contracts/upgradeable/Registry.sol b/contracts/upgradeable/Registry.sol
index c5755e1..46781a1 100644
--- a/contracts/upgradeable/Registry.sol
+++ b/contracts/upgradeable/Registry.sol
@@ -49,6 +49,7 @@ contract Registry is IRegistry {
 
   function upgrade(bytes32 name, uint version) public {
     UpgradeabilityProxy(proxies[name]).upgradeTo(version);
+    ProxyImplementationUpgraded(name, version);
   }
 
   /**