diff --git a/lib/actions/create-issue.js b/lib/actions/create-issue.js
index 2b16036..176a2f7 100644
--- a/lib/actions/create-issue.js
+++ b/lib/actions/create-issue.js
@@ -1,16 +1,15 @@
 module.exports = {
   description: 'Create new issue',
   props: [],
-  run () {
+  async run () {
     const IssuesDAO = require('../dao/issues-dao');
     const ProjectsInquirer = require('../inquirer/projects-inquirer');
     const IssuesInquirer = require('../inquirer/issues-inquirer');
     const PrintUtils = require('../utils/print-utils');
 
-    return ProjectsInquirer
-      .chooseProject()
-      .then(IssuesInquirer.getIssueParameters)
-      .then(IssuesDAO.createIssue)
-      .then(({ key }) => PrintUtils.printLine(`Issue '${key}' successfully created`, 'green'));
+    const projectId = await ProjectsInquirer.chooseProject();
+    const parameters = await IssuesInquirer.getIssueParameters(projectId);
+    const issue = await IssuesDAO.createIssue(parameters);
+    PrintUtils.printLine(`Issue '${issue.key}' successfully created`, 'green')
   }
 };
diff --git a/lib/actions/issue-status.js b/lib/actions/issue-status.js
index 5c01fc6..e0f0cb3 100644
--- a/lib/actions/issue-status.js
+++ b/lib/actions/issue-status.js
@@ -1,12 +1,11 @@
 module.exports = {
   description: 'Show issue status',
   props: ['issueName'],
-  run (issueName) {
+  async run (issueName) {
     const IssuesDAO = require('../dao/issues-dao');
     const IssuesPrinter = require('../printer/issues-printer');
 
-    return IssuesDAO
-      .findIssueByName(issueName)
-      .then(IssuesPrinter.printIssueStatus);
+    const issue = await IssuesDAO.findIssueByName(issueName);
+    IssuesPrinter.printIssueStatus(issue);
   }
 };
diff --git a/lib/actions/issue.js b/lib/actions/issue.js
index cae5335..d800be9 100644
--- a/lib/actions/issue.js
+++ b/lib/actions/issue.js
@@ -1,12 +1,11 @@
 module.exports = {
   description: 'Show issue details',
   props: ['issueName'],
-  run (issueName) {
+  async run (issueName) {
     const IssuesDAO = require('../dao/issues-dao');
     const IssuesPrinter = require('../printer/issues-printer');
 
-    return IssuesDAO
-      .findIssueByName(issueName)
-      .then(IssuesPrinter.printIssueDetails);
+    const issue = await IssuesDAO.findIssueByName(issueName);
+    IssuesPrinter.printIssueDetails(issue);
   }
 };
diff --git a/lib/actions/jql.js b/lib/actions/jql.js
index 6413d32..367649f 100644
--- a/lib/actions/jql.js
+++ b/lib/actions/jql.js
@@ -1,12 +1,11 @@
 module.exports = {
   description: 'Show issues using JQL',
   props: ['jql'],
-  run (jql) {
+  async run (jql) {
     const IssuesDAO = require('../dao/issues-dao');
     const IssuesPrinter = require('../printer/issues-printer');
 
-    return IssuesDAO
-      .fetchIssuesUsingJQL(jql)
-      .then(IssuesPrinter.printIssues)
+    const issues = await IssuesDAO.fetchIssuesUsingJQL(jql);
+    IssuesPrinter.printIssues(issues)
   }
 };
diff --git a/lib/dao/issue-types-dao.js b/lib/dao/issue-types-dao.js
index b1d7e7a..862b2ae 100644
--- a/lib/dao/issue-types-dao.js
+++ b/lib/dao/issue-types-dao.js
@@ -2,10 +2,11 @@ const DAOUtils = require('../utils/dao-utils');
 const IssueTypesMapper = require('../mappers/issue-types-mapper');
 
 module.exports = {
-  getIssueTypesExcludingSubtasks (projectId) {
-    return DAOUtils
-      .fetch(`/project/${projectId}`)
-      .then(({ issueTypes }) => issueTypes.filter(issue => !issue.subtask))
-      .then(IssueTypesMapper.mapIssueTypes);
+  async getIssueTypesExcludingSubtasks (projectId) {
+    const { issueTypes } = await DAOUtils.fetch(`/project/${projectId}`);
+
+    return issueTypes
+      .filter(issue => !issue.subtask)
+      .map(IssueTypesMapper.mapIssueType)
   }
 };
diff --git a/lib/dao/issues-dao.js b/lib/dao/issues-dao.js
index ae10627..383be4e 100644
--- a/lib/dao/issues-dao.js
+++ b/lib/dao/issues-dao.js
@@ -2,13 +2,12 @@ const DAOUtils = require('../utils/dao-utils');
 const IssuesMapper = require('../mappers/issues-mapper');
 
 module.exports = {
-  findIssueByName (issueName) {
-    return DAOUtils
-      .fetch(`/issue/${issueName}`)
-      .then(IssuesMapper.mapIssueDetails)
+  async findIssueByName (issueName) {
+    const issue = await DAOUtils.fetch(`/issue/${issueName}`);
+    return IssuesMapper.mapIssueDetails(issue);
   },
 
-  createIssue ({ summary, description, issueTypeId, projectId }) {
+  async createIssue ({ summary, description, issueTypeId, projectId }) {
     return DAOUtils.post('/issue', {
       summary,
       description,
@@ -17,9 +16,8 @@ module.exports = {
     })
   },
 
-  fetchIssuesUsingJQL (jql) {
-    return DAOUtils
-      .fetch(`/search?jql=${jql}`)
-      .then(IssuesMapper.mapIssues);
+  async fetchIssuesUsingJQL (jql) {
+    const { issues } = await DAOUtils.fetch(`/search?jql=${jql}`);
+    return issues.map(IssuesMapper.mapIssue);
   }
 };
diff --git a/lib/dao/projects-dao.js b/lib/dao/projects-dao.js
index 493cd7f..bccc26f 100644
--- a/lib/dao/projects-dao.js
+++ b/lib/dao/projects-dao.js
@@ -2,13 +2,12 @@ const DAOUtils = require('../utils/dao-utils');
 const ProjectsMapper = require('../mappers/projects-mapper');
 
 module.exports = {
-  getProjects () {
-    return DAOUtils
-      .fetch(`/project`)
-      .then(ProjectsMapper.mapProjects);
+  async getProjects () {
+    const projects = await DAOUtils.fetch(`/project`);
+    return projects.map(ProjectsMapper.mapProject);
   },
 
-  getProject (projectId) {
+  async getProject (projectId) {
     return DAOUtils.fetch(`/project/${projectId}`);
   }
 };
diff --git a/lib/inquirer/issues-inquirer.js b/lib/inquirer/issues-inquirer.js
index 214abf4..35d8e21 100644
--- a/lib/inquirer/issues-inquirer.js
+++ b/lib/inquirer/issues-inquirer.js
@@ -2,24 +2,25 @@ const prompt = require('inquirer').prompt;
 const IssueTypesDAO = require('../dao/issue-types-dao');
 
 module.exports = {
-  getIssueParameters (projectId) {
-    return IssueTypesDAO.getIssueTypesExcludingSubtasks(projectId)
-      .then(issueTypes => prompt([
-        {
-          type: 'list',
-          name: 'issueTypeId',
-          message: 'Type: ',
-          choices: issueTypes.map(issueType => ({ value: issueType.id, name: issueType.name }))
-        },{
-          type: 'input',
-          name: 'summary',
-          message: 'Name: '
-        },{
-          type: 'input',
-          name: 'description',
-          message: 'Description: '
-        }
-      ]))
-      .then(answers => Object.assign(answers, { projectId }));
+  async getIssueParameters (projectId) {
+    const issueTypes = await IssueTypesDAO.getIssueTypesExcludingSubtasks(projectId);
+    const answers = await prompt([
+      {
+        type: 'list',
+        name: 'issueTypeId',
+        message: 'Type: ',
+        choices: issueTypes.map(issueType => ({ value: issueType.id, name: issueType.name }))
+      },{
+        type: 'input',
+        name: 'summary',
+        message: 'Name: '
+      },{
+        type: 'input',
+        name: 'description',
+        message: 'Description: '
+      }
+    ]);
+
+    return Object.assign(answers, { projectId });
   }
 };
diff --git a/lib/inquirer/projects-inquirer.js b/lib/inquirer/projects-inquirer.js
index 89cdd11..4c64b64 100644
--- a/lib/inquirer/projects-inquirer.js
+++ b/lib/inquirer/projects-inquirer.js
@@ -2,14 +2,16 @@ const prompt = require('inquirer').prompt;
 const ProjectsDAO = require('../dao/projects-dao');
 
 module.exports = {
-  chooseProject () {
-    return ProjectsDAO.getProjects()
-      .then(projects => prompt({
-        type: 'list',
-        name: 'projectId',
-        message: 'Choose project: ',
-        choices: projects.map(project => ({ value: project.id, name: project.name }))
-      }))
-      .then(({ projectId }) => projectId)
+  async chooseProject () {
+    const projects = await ProjectsDAO.getProjects();
+
+    const { projectId } = await prompt({
+      type: 'list',
+      name: 'projectId',
+      message: 'Choose project: ',
+      choices: projects.map(project => ({ value: project.id, name: project.name }))
+    });
+
+    return projectId;
   }
 };
diff --git a/lib/mappers/issue-types-mapper.js b/lib/mappers/issue-types-mapper.js
index 83db482..c8cc9db 100644
--- a/lib/mappers/issue-types-mapper.js
+++ b/lib/mappers/issue-types-mapper.js
@@ -6,10 +6,6 @@ const IssueTypeMapper = {
     };
 
     return issueType;
-  },
-
-  mapIssueTypes (issueTypes) {
-    return issueTypes.map(IssueTypeMapper.mapIssueType);
   }
 };
 
diff --git a/lib/mappers/issues-mapper.js b/lib/mappers/issues-mapper.js
index 93a006b..d712e8c 100644
--- a/lib/mappers/issues-mapper.js
+++ b/lib/mappers/issues-mapper.js
@@ -24,10 +24,6 @@ const IssueMapper = {
     issue.commentsCount = serverIssue.fields.comment.total;
     issue.comments = (serverIssue.fields.comment.comments || []).map(CommentsMapper.mapComment);
     return issue;
-  },
-
-  mapIssues ({ issues }) {
-    return issues.map(IssueMapper.mapIssue);
   }
 };
 
diff --git a/lib/utils/configuration-utils.js b/lib/utils/configuration-utils.js
index 96d9e56..4352555 100644
--- a/lib/utils/configuration-utils.js
+++ b/lib/utils/configuration-utils.js
@@ -14,10 +14,6 @@ function saveConfiguration ({ host, username, password }) {
   })
 }
 
-function printWhereConfigurationStored () {
-  PrintUtils.printLine(`Configuration JSON stored in '${CONFIGURATION_FILE_PATH}' file`, 'yellow')
-}
-
 const ConfigurationUtils = {
   CONFIGURATION_FILE_PATH,
 
@@ -30,11 +26,11 @@ const ConfigurationUtils = {
     PrintUtils.printNewLine();
   },
 
-  setupConfigurationFile () {
-    return ConfigurationInquirer.getConfigurationParameters()
-      .then(saveConfiguration)
-      .then(ConfigurationUtils.printConfigurationFile)
-      .then(printWhereConfigurationStored)
+  async setupConfigurationFile () {
+    const parameters = await ConfigurationInquirer.getConfigurationParameters();
+    saveConfiguration(parameters);
+    ConfigurationUtils.printConfigurationFile();
+    PrintUtils.printLine(`Configuration JSON stored in '${CONFIGURATION_FILE_PATH}' file`, 'yellow')
   }
 };
 
diff --git a/lib/utils/dao-utils.js b/lib/utils/dao-utils.js
index 589a00c..707a81e 100644
--- a/lib/utils/dao-utils.js
+++ b/lib/utils/dao-utils.js
@@ -14,18 +14,28 @@ function readDataFromResponse (response) {
 }
 
 const DAOUtils = {
-  fetch (url) {
-    return require('axios')
-      .get(buildUrl(url), buildRequestParams())
-      .then(readDataFromResponse)
-      .catch(require('./error-handle-utils').handleResponseError);
+  async fetch (url) {
+    const axios = require('axios');
+    const ErrorHandleUtils = require('./error-handle-utils');
+
+    try {
+      const response = await axios.get(buildUrl(url), buildRequestParams());
+      return readDataFromResponse(response);
+    } catch (error) {
+      ErrorHandleUtils.handleResponseError(error);
+    }
   },
 
-  post (url, fields) {
-    return require('axios')
-      .post(buildUrl(url), { fields }, buildRequestParams())
-      .then(readDataFromResponse)
-      .catch(require('./error-handle-utils').handleResponseError);
+  async post (url, fields) {
+    const axios = require('axios');
+    const ErrorHandleUtils = require('./error-handle-utils');
+
+    try {
+      const response = await axios.post(buildUrl(url), { fields }, buildRequestParams());
+      return readDataFromResponse(response);
+    } catch (error) {
+      ErrorHandleUtils.handleResponseError(error);
+    }
   }
 };