diff --git a/contracts/access/SignatureBouncer.sol b/contracts/access/SignatureBouncer.sol
index 7d8f98d22..44e18e356 100644
--- a/contracts/access/SignatureBouncer.sol
+++ b/contracts/access/SignatureBouncer.sol
@@ -29,7 +29,7 @@ contract SignatureBouncer is Migratable, Ownable, RBAC {
   string public constant ROLE_BOUNCER = "bouncer";
 
   function initialize(address _sender)
-    isInitializer("SignatureBouncer", "1.9.0-beta")
+    isInitializer("SignatureBouncer", "1.9.0")
     public
   {
     Ownable.initialize(_sender);
diff --git a/contracts/lifecycle/Pausable.sol b/contracts/lifecycle/Pausable.sol
index 921bd0d83..f24dfcb6b 100644
--- a/contracts/lifecycle/Pausable.sol
+++ b/contracts/lifecycle/Pausable.sol
@@ -15,7 +15,7 @@ contract Pausable is Migratable, Ownable {
   bool public paused = false;
 
 
-  function initialize(address _sender) isInitializer("Pausable", "1.9.0-beta")  public {
+  function initialize(address _sender) isInitializer("Pausable", "1.9.0")  public {
     Ownable.initialize(_sender);
   }
 
diff --git a/contracts/mocks/BouncerMock.sol b/contracts/mocks/BouncerMock.sol
index 3bc826583..4fddd99ae 100644
--- a/contracts/mocks/BouncerMock.sol
+++ b/contracts/mocks/BouncerMock.sol
@@ -5,7 +5,7 @@ import "../access/SignatureBouncer.sol";
 
 contract SignatureBouncerMock is SignatureBouncer {
   function initialize(address _sender)
-    isInitializer("SignatureBouncerMock", "1.9.0-beta")
+    isInitializer("SignatureBouncerMock", "1.9.0")
     public
   {
     SignatureBouncer.initialize(_sender);
diff --git a/contracts/ownership/Ownable.sol b/contracts/ownership/Ownable.sol
index 64d6ea5e7..4dd804ed7 100644
--- a/contracts/ownership/Ownable.sol
+++ b/contracts/ownership/Ownable.sol
@@ -18,7 +18,7 @@ contract Ownable is Migratable {
    * @dev The Ownable constructor sets the original `owner` of the contract to the sender
    * account.
    */
-  function initialize(address _sender) public isInitializer("Ownable", "1.9.0-beta") {
+  function initialize(address _sender) public isInitializer("Ownable", "1.9.0") {
     owner = _sender;
   }
 
diff --git a/contracts/ownership/rbac/RBACWithAdmin.sol b/contracts/ownership/rbac/RBACWithAdmin.sol
index 1512b79b2..2ef1d2c7a 100644
--- a/contracts/ownership/rbac/RBACWithAdmin.sol
+++ b/contracts/ownership/rbac/RBACWithAdmin.sol
@@ -30,7 +30,7 @@ contract RBACWithAdmin is RBAC, Migratable {
    * @dev constructor. Sets initialAdmin as admin.
    */
   function initialize(address initialAdmin)
-    isInitializer("RBACWithAdmin", "1.9.0-beta")
+    isInitializer("RBACWithAdmin", "1.9.0")
     public
   {
     addRole(initialAdmin, ROLE_ADMIN);
diff --git a/contracts/payment/SplitPayment.sol b/contracts/payment/SplitPayment.sol
index bf8eb7280..b15be74d6 100644
--- a/contracts/payment/SplitPayment.sol
+++ b/contracts/payment/SplitPayment.sol
@@ -23,7 +23,7 @@ contract SplitPayment is Migratable {
    * @dev Constructor
    */
   function initialize(address[] _payees, uint256[] _shares)
-    isInitializer("SplitPayment", "1.9.0-beta")
+    isInitializer("SplitPayment", "1.9.0")
     public
     payable
   {
diff --git a/contracts/token/ERC20/DetailedERC20.sol b/contracts/token/ERC20/DetailedERC20.sol
index a4077f635..921f23c8c 100644
--- a/contracts/token/ERC20/DetailedERC20.sol
+++ b/contracts/token/ERC20/DetailedERC20.sol
@@ -9,7 +9,7 @@ contract DetailedERC20 is Migratable, ERC20 {
   string public symbol;
   uint8 public decimals;
 
-  function initialize(string _name, string _symbol, uint8 _decimals) public isInitializer("DetailedERC20", "1.9.0-beta") {
+  function initialize(string _name, string _symbol, uint8 _decimals) public isInitializer("DetailedERC20", "1.9.0") {
     name = _name;
     symbol = _symbol;
     decimals = _decimals;
diff --git a/contracts/token/ERC20/DetailedMintableToken.sol b/contracts/token/ERC20/DetailedMintableToken.sol
index e9fbbfd43..7ad41582c 100644
--- a/contracts/token/ERC20/DetailedMintableToken.sol
+++ b/contracts/token/ERC20/DetailedMintableToken.sol
@@ -12,7 +12,7 @@ contract DetailedMintableToken is Migratable, DetailedERC20, MintableToken {
     string _symbol,
     uint8 _decimals
   )
-    isInitializer("DetailedMintableToken", "1.9.0-beta")
+    isInitializer("DetailedMintableToken", "1.9.0")
     public
   {
     DetailedERC20.initialize(_name, _symbol, _decimals);
diff --git a/contracts/token/ERC20/DetailedPremintedToken.sol b/contracts/token/ERC20/DetailedPremintedToken.sol
index 10dbc6148..a27804fac 100644
--- a/contracts/token/ERC20/DetailedPremintedToken.sol
+++ b/contracts/token/ERC20/DetailedPremintedToken.sol
@@ -13,7 +13,7 @@ contract DetailedPremintedToken is Migratable, DetailedERC20, StandardToken {
     uint8 _decimals,
     uint256 _initialBalance
   )
-    isInitializer("DetailedPremintedToken", "1.9.0-beta")
+    isInitializer("DetailedPremintedToken", "1.9.0")
     public
   {
     DetailedERC20.initialize(_name, _symbol, _decimals);
diff --git a/contracts/token/ERC20/MintableToken.sol b/contracts/token/ERC20/MintableToken.sol
index 01fa1409e..84cb75817 100644
--- a/contracts/token/ERC20/MintableToken.sol
+++ b/contracts/token/ERC20/MintableToken.sol
@@ -23,7 +23,7 @@ contract MintableToken is Migratable, Ownable, StandardToken {
     _;
   }
 
-  function initialize(address _sender) isInitializer("MintableToken", "1.9.0-beta")  public {
+  function initialize(address _sender) isInitializer("MintableToken", "1.9.0")  public {
     Ownable.initialize(_sender);
   }
 
diff --git a/contracts/token/ERC20/PausableToken.sol b/contracts/token/ERC20/PausableToken.sol
index a22370885..5822d2776 100644
--- a/contracts/token/ERC20/PausableToken.sol
+++ b/contracts/token/ERC20/PausableToken.sol
@@ -10,7 +10,7 @@ import "../../lifecycle/Pausable.sol";
  **/
 contract PausableToken is Migratable, StandardToken, Pausable {
 
-  function initialize(address _sender) isInitializer("PausableToken", "1.9.0-beta")  public {
+  function initialize(address _sender) isInitializer("PausableToken", "1.9.0")  public {
     Pausable.initialize(_sender);
   }
 
diff --git a/contracts/token/ERC20/TokenTimelock.sol b/contracts/token/ERC20/TokenTimelock.sol
index a9ba1e1c8..8c3f65d08 100644
--- a/contracts/token/ERC20/TokenTimelock.sol
+++ b/contracts/token/ERC20/TokenTimelock.sol
@@ -27,7 +27,7 @@ contract TokenTimelock is Migratable {
     address _beneficiary,
     uint256 _releaseTime
   )
-    isInitializer("TokenTimelock", "1.9.0-beta")
+    isInitializer("TokenTimelock", "1.9.0")
     public
   {
     // solium-disable-next-line security/no-block-members
diff --git a/contracts/token/ERC20/TokenVesting.sol b/contracts/token/ERC20/TokenVesting.sol
index aaded21ee..f2105ec1a 100644
--- a/contracts/token/ERC20/TokenVesting.sol
+++ b/contracts/token/ERC20/TokenVesting.sol
@@ -52,7 +52,7 @@ contract TokenVesting is Migratable, Ownable {
     bool _revocable
   )
     public
-    isInitializer("TokenVesting", "1.9.0-beta")
+    isInitializer("TokenVesting", "1.9.0")
   {
     Ownable.initialize(_sender);
 
diff --git a/contracts/token/ERC721/ERC721Token.sol b/contracts/token/ERC721/ERC721Token.sol
index 0c2802552..324a82d3a 100644
--- a/contracts/token/ERC721/ERC721Token.sol
+++ b/contracts/token/ERC721/ERC721Token.sol
@@ -36,7 +36,7 @@ contract ERC721Token is Migratable, ERC721, ERC721BasicToken {
   /**
    * @dev Constructor function
    */
-  function initialize(string _name, string _symbol) public isInitializer("ERC721Token", "1.9.0-beta") {
+  function initialize(string _name, string _symbol) public isInitializer("ERC721Token", "1.9.0") {
     name_ = _name;
     symbol_ = _symbol;
   }
diff --git a/contracts/token/ERC721/MintableERC721Token.sol b/contracts/token/ERC721/MintableERC721Token.sol
index 9d6a14ed8..00f055f26 100644
--- a/contracts/token/ERC721/MintableERC721Token.sol
+++ b/contracts/token/ERC721/MintableERC721Token.sol
@@ -8,7 +8,7 @@ import "../../ownership/Ownable.sol";
  * @title Mintable ERC721 Token
  */
 contract MintableERC721Token is Migratable, Ownable, ERC721Token {
-  function initialize(address _sender, string _name, string _symbol) isInitializer("MintableERC721Token", "1.9.0-beta")  public {
+  function initialize(address _sender, string _name, string _symbol) isInitializer("MintableERC721Token", "1.9.0")  public {
     Ownable.initialize(_sender);
     ERC721Token.initialize(_name, _symbol);
   }
diff --git a/zos.json b/zos.json
index 389b8b6ff..7fc81ada1 100644
--- a/zos.json
+++ b/zos.json
@@ -1,6 +1,6 @@
 {
   "name": "openzeppelin-zos",
-  "version": "1.9.0-beta",
+  "version": "1.9.0",
   "contracts": {
     "DetailedMintableToken": "DetailedMintableToken",
     "DetailedPremintedToken": "DetailedPremintedToken",