diff --git a/index.js b/index.js
index 886dea9..14bf644 100644
--- a/index.js
+++ b/index.js
@@ -5,7 +5,7 @@
  * not suited for a production certificate authority”).
  *
  * @module
- * @Copyright © 2020 - 2021 Aral Balkan, Small Technology Foundation
+ * @Copyright © 2020-2021 Aral Balkan, Small Technology Foundation
  * @license AGPL version 3.0 or later
  */
 import os from 'os'
diff --git a/lib/MonkeyPatchTls.js b/lib/MonkeyPatchTls.js
index b6fc69c..b96ecc6 100644
--- a/lib/MonkeyPatchTls.js
+++ b/lib/MonkeyPatchTls.js
@@ -5,7 +5,7 @@
  * Based on the method provided by David Barral at https://link.medium.com/6xHYLeUVq5.
  *
  * @module
- * @copyright Copyright © 2020 - 2021 Aral Balkan, Small Technology Foundation.
+ * @copyright Copyright © 2020-2021 Aral Balkan, Small Technology Foundation.
  * @license AGPLv3 or later.
  */
 import fs from 'fs'
diff --git a/lib/util/Throws.js b/lib/util/Throws.js
index 3848bdc..012bc32 100644
--- a/lib/util/Throws.js
+++ b/lib/util/Throws.js
@@ -6,7 +6,7 @@
 // and predefined yet configurable lists of errors to make working with errors
 // safer (fewer magic strings) and DRYer (Don’t Repeat Yourself).
 //
-// Copyright © 2020 - 2021 Aral Balkan, Small Technology Foundation.
+// Copyright © 2020-2021 Aral Balkan, Small Technology Foundation.
 // License: AGPLv3 or later.
 //
 ////////////////////////////////////////////////////////////////////////////////