diff --git a/contracts/contracts-registry/pools/AbstractPoolContractsRegistry.sol b/contracts/contracts-registry/pools/AbstractPoolContractsRegistry.sol
index 3df701fd..e1cf7f1e 100644
--- a/contracts/contracts-registry/pools/AbstractPoolContractsRegistry.sol
+++ b/contracts/contracts-registry/pools/AbstractPoolContractsRegistry.sol
@@ -124,7 +124,7 @@ abstract contract AbstractPoolContractsRegistry is Initializable, AbstractDepend
     ) internal virtual {
         for (uint256 i = 0; i < names_.length; i++) {
             if (address(_beacons[names_[i]]) == address(0)) {
-                _beacons[names_[i]] = ProxyBeacon(_deployProxyBeacon(newImplementations_[i]));
+                _beacons[names_[i]] = ProxyBeacon(_deployProxyBeacon());
             }
 
             if (_beacons[names_[i]].implementation() != newImplementations_[i]) {
@@ -184,10 +184,9 @@ abstract contract AbstractPoolContractsRegistry is Initializable, AbstractDepend
 
     /**
      * @notice The utility function to deploy a Proxy Beacon contract to be used within the registry
-     * @param implementation_ the address of the implementation
      * @return the address of a Proxy Beacon
      */
-    function _deployProxyBeacon(address implementation_) internal virtual returns (address) {
+    function _deployProxyBeacon() internal virtual returns (address) {
         return address(new ProxyBeacon());
     }
 }
diff --git a/contracts/contracts-registry/pools/proxy/ProxyBeacon.sol b/contracts/contracts-registry/pools/proxy/ProxyBeacon.sol
index 48b894ac..f907d714 100644
--- a/contracts/contracts-registry/pools/proxy/ProxyBeacon.sol
+++ b/contracts/contracts-registry/pools/proxy/ProxyBeacon.sol
@@ -35,7 +35,7 @@ contract ProxyBeacon is IBeacon {
         emit Upgraded(newImplementation_);
     }
 
-    function implementation() external view override returns (address) {
+    function implementation() public view override returns (address) {
         return _implementation;
     }
 }
diff --git a/contracts/package.json b/contracts/package.json
index 74f20eb9..8ad780e3 100644
--- a/contracts/package.json
+++ b/contracts/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@solarity/solidity-lib",
-  "version": "2.6.3",
+  "version": "2.6.4",
   "license": "MIT",
   "author": "Distributed Lab",
   "readme": "README.md",
diff --git a/package-lock.json b/package-lock.json
index 3b1dd784..7b1a975f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@solarity/solidity-lib",
-  "version": "2.6.3",
+  "version": "2.6.4",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@solarity/solidity-lib",
-      "version": "2.6.3",
+      "version": "2.6.4",
       "hasInstallScript": true,
       "license": "MIT",
       "dependencies": {
diff --git a/package.json b/package.json
index 7845978b..7875f247 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@solarity/solidity-lib",
-  "version": "2.6.3",
+  "version": "2.6.4",
   "license": "MIT",
   "author": "Distributed Lab",
   "description": "Solidity Library by Distributed Lab",