diff --git a/dev/resources/licence/Links on GPL.txt b/dev/resources/licence/Links on GPL.txt
index 1bb3053da2a..bb9c1597f68 100644
--- a/dev/resources/licence/Links on GPL.txt	
+++ b/dev/resources/licence/Links on GPL.txt	
@@ -1,8 +1,8 @@
 * Page with licence compatibility
-http://www.gnu.org/licenses/quick-guide-gplv3.fr.html
+https://www.gnu.org/licenses/quick-guide-gplv3.fr.html
 
 * FAQ on GPL licence
-http://www.fsf.org/licensing/licenses/gpl-faq.html
+https://www.fsf.org/licensing/licenses/gpl-faq.html
 
 * Questions/Answers on Fork for using Dolibarr as a SaaS
-http://stackoverflow.com/questions/539291/rebranding-a-gpld-app-as-saas
+https://stackoverflow.com/questions/539291/rebranding-a-gpld-app-as-saas
diff --git a/dev/translation/autotranslator.class.php b/dev/translation/autotranslator.class.php
index 789bd8173c4..f9657482c86 100644
--- a/dev/translation/autotranslator.class.php
+++ b/dev/translation/autotranslator.class.php
@@ -12,7 +12,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
 /**
diff --git a/dev/translation/autotranslator.php b/dev/translation/autotranslator.php
index eb0f53ead65..5e8cc13c3c8 100755
--- a/dev/translation/autotranslator.php
+++ b/dev/translation/autotranslator.php
@@ -13,7 +13,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
 /**
diff --git a/dev/translation/sanity_check_en_langfiles.php b/dev/translation/sanity_check_en_langfiles.php
index 4db931f7dae..7f095a744db 100755
--- a/dev/translation/sanity_check_en_langfiles.php
+++ b/dev/translation/sanity_check_en_langfiles.php
@@ -15,7 +15,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
 $sapi_type = php_sapi_name();
diff --git a/dev/translation/strip_language_file.php b/dev/translation/strip_language_file.php
index d439397a512..ce28ca5de63 100755
--- a/dev/translation/strip_language_file.php
+++ b/dev/translation/strip_language_file.php
@@ -14,7 +14,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
  *
  * -----
  *