diff --git a/packages/concordia-contracts/migrations/2_deploy_contracts.js b/packages/concordia-contracts/migrations/2_deploy_contracts.js
index df11216..7d1f449 100644
--- a/packages/concordia-contracts/migrations/2_deploy_contracts.js
+++ b/packages/concordia-contracts/migrations/2_deploy_contracts.js
@@ -4,8 +4,8 @@ const PostVoting = artifacts.require('PostVoting');
 
 // eslint-disable-next-line func-names
 module.exports = function (deployer) {
-  deployer.deploy(Forum).then((forum) => {
-    deployer.deploy(Voting, forum.address);
-    deployer.deploy(PostVoting, forum.address);
+  deployer.deploy(Forum).then(async (forum) => {
+    await deployer.deploy(Voting, forum.address);
+    await deployer.deploy(PostVoting, forum.address);
   });
 };
diff --git a/packages/concordia-contracts/package.json b/packages/concordia-contracts/package.json
index aba8e5d..60bd035 100644
--- a/packages/concordia-contracts/package.json
+++ b/packages/concordia-contracts/package.json
@@ -14,7 +14,7 @@
   },
   "dependencies": {
     "@openzeppelin/contracts": "~3.2.0",
-    "truffle": "~5.1.45"
+    "truffle": "~5.1.55"
   },
   "devDependencies": {
     "eslint": "^6.8.0",
diff --git a/packages/concordia-contracts/test/TestVoting.sol b/packages/concordia-contracts/test/TestVoting.sol
index c62998f..6925740 100644
--- a/packages/concordia-contracts/test/TestVoting.sol
+++ b/packages/concordia-contracts/test/TestVoting.sol
@@ -17,10 +17,10 @@ contract TestVoting {
         (firstTopicId,) = forum.createTopic();
     }
 
-    function testIsPollExistent() public {
+    function testIfPollExists() public {
         Voting voting = Voting(DeployedAddresses.Voting());
 
-        bool actual = voting.isPollExistent(firstTopicId);
+        bool actual = voting.pollExists(firstTopicId);
 
         Assert.equal(actual, false, "Poll should not exist");
     }
diff --git a/yarn.lock b/yarn.lock
index c356e49..b320cea 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -16347,10 +16347,10 @@ tr46@^1.0.1:
   dependencies:
     punycode "^2.1.0"
 
-truffle@~5.1.45:
-  version "5.1.53"
-  resolved "https://registry.yarnpkg.com/truffle/-/truffle-5.1.53.tgz#3c984317d092f230d84b7d138d69dace106b5c2b"
-  integrity sha512-JXuuhPOsh/K9K9PJTcZDRy6ByxreOrchMIM1SgEVRi85MF6XWQSZwwV1kXF+JRtP938lfRmmpgWQb1MzFBY7qw==
+truffle@~5.1.55:
+  version "5.1.55"
+  resolved "https://registry.yarnpkg.com/truffle/-/truffle-5.1.55.tgz#ec5e245213e4f0f42ef836308b50a8d79355a649"
+  integrity sha512-chZM43DOo7aCn+z1Pcj5f4ts9YqnHhKI31CZ+B6N93nbWKnIrBN/hBZeEXSi9s9FZ3nsmp+Iplr5Z4dnHAqDxA==
   dependencies:
     app-module-path "^2.2.0"
     mocha "8.1.2"