diff --git a/src/rss_thread_watch/utils.clj b/src/rss_thread_watch/utils.clj
index 847637b..5265958 100644
--- a/src/rss_thread_watch/utils.clj
+++ b/src/rss_thread_watch/utils.clj
@@ -1,3 +1,17 @@
+;; Copyright (C) 2023  Felisp
+;;
+;; This program is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU Affero General Public License as published by
+;; the Free Software Foundation, version 3 of the License.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU Affero General Public License for more details.
+;;
+;; You should have received a copy of the GNU Affero General Public License
+;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 (ns rss-thread-watch.utils
   "Util functions"
   (:gen-class))
diff --git a/test/rss_thread_watch/utils_test.clj b/test/rss_thread_watch/utils_test.clj
index 6673fee..e90a305 100644
--- a/test/rss_thread_watch/utils_test.clj
+++ b/test/rss_thread_watch/utils_test.clj
@@ -1,3 +1,17 @@
+;; Copyright (C) 2023  Felisp
+;;
+;; This program is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU Affero General Public License as published by
+;; the Free Software Foundation, version 3 of the License.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU Affero General Public License for more details.
+;;
+;; You should have received a copy of the GNU Affero General Public License
+;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 (ns rss-thread-watch.utils-test
   (:require [clojure.test :refer :all]
             [rss-thread-watch.utils :refer :all]))