diff --git a/issue.go b/issue.go
index 3cc9c08..ea2045a 100644
--- a/issue.go
+++ b/issue.go
@@ -646,6 +646,30 @@ func (s *IssueService) AddComment(issueID string, comment *Comment) (*Comment, *
 	return responseComment, resp, nil
 }
 
+// UpdateComment updates the body of a comment, identified by comment.ID, on the issueID.
+//
+// JIRA API docs: https://docs.atlassian.com/jira/REST/cloud/#api/2/issue/{issueIdOrKey}/comment-updateComment
+func (s *IssueService) UpdateComment(issueID string, comment *Comment) (*Comment, *Response, error) {
+	reqBody := struct {
+		Body string `json:"body"`
+	}{
+		Body: comment.Body,
+	}
+	apiEndpoint := fmt.Sprintf("rest/api/2/issue/%s/comment/%s", issueID, comment.ID)
+	req, err := s.client.NewRequest("POST", apiEndpoint, reqBody)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	responseComment := new(Comment)
+	resp, err := s.client.Do(req, responseComment)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return responseComment, resp, nil
+}
+
 // AddLink adds a link between two issues.
 //
 // JIRA API docs: https://docs.atlassian.com/jira/REST/latest/#api/2/issueLink
diff --git a/issue_test.go b/issue_test.go
index b05d9e3..cfe3dce 100644
--- a/issue_test.go
+++ b/issue_test.go
@@ -153,6 +153,34 @@ func TestIssueService_AddComment(t *testing.T) {
 	}
 }
 
+func TestIssueService_UpdateComment(t *testing.T) {
+	setup()
+	defer teardown()
+	testMux.HandleFunc("/rest/api/2/issue/10000/comment/10001", func(w http.ResponseWriter, r *http.Request) {
+		testMethod(t, r, "POST")
+		testRequestURL(t, r, "/rest/api/2/issue/10000/comment/10001")
+
+		w.WriteHeader(http.StatusCreated)
+		fmt.Fprint(w, `{"self":"http://www.example.com/jira/rest/api/2/issue/10010/comment/10001","id":"10001","author":{"self":"http://www.example.com/jira/rest/api/2/user?username=fred","name":"fred","displayName":"Fred F. User","active":false},"body":"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque eget venenatis elit. Duis eu justo eget augue iaculis fermentum. Sed semper quam laoreet nisi egestas at posuere augue semper.","updateAuthor":{"self":"http://www.example.com/jira/rest/api/2/user?username=fred","name":"fred","displayName":"Fred F. User","active":false},"created":"2016-03-16T04:22:37.356+0000","updated":"2016-03-16T04:22:37.356+0000","visibility":{"type":"role","value":"Administrators"}}`)
+	})
+
+	c := &Comment{
+		ID:   "10001",
+		Body: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque eget venenatis elit. Duis eu justo eget augue iaculis fermentum. Sed semper quam laoreet nisi egestas at posuere augue semper.",
+		Visibility: CommentVisibility{
+			Type:  "role",
+			Value: "Administrators",
+		},
+	}
+	comment, _, err := testClient.Issue.UpdateComment("10000", c)
+	if comment == nil {
+		t.Error("Expected Comment. Comment is nil")
+	}
+	if err != nil {
+		t.Errorf("Error given: %s", err)
+	}
+}
+
 func TestIssueService_AddLink(t *testing.T) {
 	setup()
 	defer teardown()