diff --git a/debian/copyright b/debian/copyright
index 576ed9a5..8c7b70fe 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -173,7 +173,7 @@ License: LGPL-2+
  Lesser General Public License for more details.
  .
  You should have received a copy of the GNU Lesser General Public
- License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ License along with this library. If not, see <https://www.gnu.org/licenses/>.
 
 License: X11
  Permission to use, copy, modify, distribute, and sell this software and
diff --git a/eekboard/eekboard-context-service.c b/eekboard/eekboard-context-service.c
index f11989f6..b3001653 100644
--- a/eekboard/eekboard-context-service.c
+++ b/eekboard/eekboard-context-service.c
@@ -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/>.
  */
 
 #include "config.h"
diff --git a/eekboard/eekboard-context-service.h b/eekboard/eekboard-context-service.h
index 1ba28fae..ca4e1d71 100644
--- a/eekboard/eekboard-context-service.h
+++ b/eekboard/eekboard-context-service.h
@@ -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/>.
  */
 #if !defined(__EEKBOARD_SERVICE_H_INSIDE__) && !defined(EEKBOARD_COMPILATION)
 #error "Only <eekboard/eekboard-service.h> can be included directly."
diff --git a/src/dbus.c b/src/dbus.c
index b894a2e1..3d48a4bb 100644
--- a/src/dbus.c
+++ b/src/dbus.c
@@ -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/>.
  */
 
 #include "config.h"
diff --git a/src/dbus.h b/src/dbus.h
index 9080bf28..4eceedf6 100644
--- a/src/dbus.h
+++ b/src/dbus.h
@@ -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/>.
  */
 #ifndef DBUS_H_
 #define DBUS_H_ 1
diff --git a/src/server-context-service.c b/src/server-context-service.c
index debcb79b..06553101 100644
--- a/src/server-context-service.c
+++ b/src/server-context-service.c
@@ -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/>.
  */
 #include "config.h"
 
diff --git a/src/server-context-service.h b/src/server-context-service.h
index c47b8c91..36b5d27b 100644
--- a/src/server-context-service.h
+++ b/src/server-context-service.h
@@ -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/>.
  */
 #ifndef SERVER_CONTEXT_SERVICE_H
 #define SERVER_CONTEXT_SERVICE_H 1
diff --git a/src/server-main.c b/src/server-main.c
index ccbce2e7..a823f546 100644
--- a/src/server-main.c
+++ b/src/server-main.c
@@ -16,7 +16,7 @@
  * 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/>.
  */
 #include <stdlib.h>
 #include <gio/gio.h>
diff --git a/src/style.rs b/src/style.rs
index 2715743e..23356717 100644
--- a/src/style.rs
+++ b/src/style.rs
@@ -13,7 +13,7 @@
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this library. If not, see <http://www.gnu.org/licenses/>.Free
+ * License along with this library. If not, see <https://www.gnu.org/licenses/>.Free
  */
 
 /*! CSS data loading. */
diff --git a/src/xdg.rs b/src/xdg.rs
index fe88aa25..2b5f2ce1 100644
--- a/src/xdg.rs
+++ b/src/xdg.rs
@@ -4,8 +4,8 @@
  * by "Simon Ochsenreither <simon@ochsenreither.de>",
  * Licensed under either of
 
-    Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
-    MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
+    Apache License, Version 2.0 (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0)
+    MIT license (LICENSE-MIT or https://opensource.org/licenses/MIT)
 
 at your option.
  * 
@@ -13,8 +13,8 @@ at your option.
  * by "Simon Ochsenreither <simon@ochsenreither.de>",
  * Licensed under either of
 
-    Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
-    MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
+    Apache License, Version 2.0 (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0)
+    MIT license (LICENSE-MIT or https://opensource.org/licenses/MIT)
 
 at your option.
  *