diff --git a/issue.go b/issue.go
index e5113fe..3cc9c08 100644
--- a/issue.go
+++ b/issue.go
@@ -608,6 +608,25 @@ func (s *IssueService) Update(issue *Issue) (*Issue, *Response, error) {
 	return &ret, resp, nil
 }
 
+// Update updates an issue from a JSON representation. The issue is found by key.
+//
+// https://docs.atlassian.com/jira/REST/7.4.0/#api/2/issue-editIssue
+func (s *IssueService) UpdateIssue(jiraId string, data map[string]interface{}) (*Response, error) {
+	apiEndpoint := fmt.Sprintf("rest/api/2/issue/%v", jiraId)
+	req, err := s.client.NewRequest("PUT", apiEndpoint, data)
+	if err != nil {
+		return nil, err
+	}
+	resp, err := s.client.Do(req, nil)
+	if err != nil {
+		return resp, err
+	}
+
+	// This is just to follow the rest of the API's convention of returning an issue.
+	// Returning the same pointer here is pointless, so we return a copy instead.
+	return resp, nil
+}
+
 // AddComment adds a new comment to issueID.
 //
 // JIRA API docs: https://docs.atlassian.com/jira/REST/latest/#api/2/issue-addComment
diff --git a/issue_test.go b/issue_test.go
index 940a38b..b05d9e3 100644
--- a/issue_test.go
+++ b/issue_test.go
@@ -103,6 +103,29 @@ func TestIssueService_Update(t *testing.T) {
 	}
 }
 
+func TestIssueService_UpdateIssue(t *testing.T) {
+	setup()
+	defer teardown()
+	testMux.HandleFunc("/rest/api/2/issue/PROJ-9001", func(w http.ResponseWriter, r *http.Request) {
+		testMethod(t, r, "PUT")
+		testRequestURL(t, r, "/rest/api/2/issue/PROJ-9001")
+
+		w.WriteHeader(http.StatusNoContent)
+	})
+	jId := "PROJ-9001"
+	i := make(map[string]interface{})
+	fields := make(map[string]interface{})
+	i["fields"] = fields
+	resp, err := testClient.Issue.UpdateIssue(jId, i)
+	if resp == nil {
+		t.Error("Expected resp. resp is nil")
+	}
+	if err != nil {
+		t.Errorf("Error given: %s", err)
+	}
+
+}
+
 func TestIssueService_AddComment(t *testing.T) {
 	setup()
 	defer teardown()