diff --git a/libdecnumber/decContext.c b/libdecnumber/decContext.c
index 1956edf0a7..d99b08026c 100644
--- a/libdecnumber/decContext.c
+++ b/libdecnumber/decContext.c
@@ -24,9 +24,8 @@
    for more details.
 
    You should have received a copy of the GNU General Public License
-   along with GCC; see the file COPYING.  If not, write to the Free
-   Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
-   02110-1301, USA.  */
+   along with GCC; see the file COPYING.  If not, see
+   <https://www.gnu.org/licenses/>.  */
 
 /* ------------------------------------------------------------------ */
 /* Decimal Context module					      */
diff --git a/libdecnumber/decNumber.c b/libdecnumber/decNumber.c
index 31282adafd..4b57d8a6fe 100644
--- a/libdecnumber/decNumber.c
+++ b/libdecnumber/decNumber.c
@@ -24,9 +24,8 @@
    for more details.
 
    You should have received a copy of the GNU General Public License
-   along with GCC; see the file COPYING.  If not, write to the Free
-   Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
-   02110-1301, USA.  */
+   along with GCC; see the file COPYING.  If not, see
+   <https://www.gnu.org/licenses/>.  */
 
 /* ------------------------------------------------------------------ */
 /* Decimal Number arithmetic module				      */
diff --git a/libdecnumber/dpd/decimal128.c b/libdecnumber/dpd/decimal128.c
index ca4764e547..1064fb25e0 100644
--- a/libdecnumber/dpd/decimal128.c
+++ b/libdecnumber/dpd/decimal128.c
@@ -24,9 +24,8 @@
    for more details.
 
    You should have received a copy of the GNU General Public License
-   along with GCC; see the file COPYING.  If not, write to the Free
-   Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
-   02110-1301, USA.  */
+   along with GCC; see the file COPYING.  If not, see
+   <https://www.gnu.org/licenses/>.  */
 
 /* ------------------------------------------------------------------ */
 /* Decimal 128-bit format module				      */
diff --git a/libdecnumber/dpd/decimal32.c b/libdecnumber/dpd/decimal32.c
index 53f29789d7..34ff0fe959 100644
--- a/libdecnumber/dpd/decimal32.c
+++ b/libdecnumber/dpd/decimal32.c
@@ -24,9 +24,8 @@
    for more details.
 
    You should have received a copy of the GNU General Public License
-   along with GCC; see the file COPYING.  If not, write to the Free
-   Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
-   02110-1301, USA.  */
+   along with GCC; see the file COPYING.  If not, see
+   <https://www.gnu.org/licenses/>.  */
 
 /* ------------------------------------------------------------------ */
 /* Decimal 32-bit format module					      */
diff --git a/libdecnumber/dpd/decimal64.c b/libdecnumber/dpd/decimal64.c
index 290dbe8177..11e0674fa7 100644
--- a/libdecnumber/dpd/decimal64.c
+++ b/libdecnumber/dpd/decimal64.c
@@ -24,9 +24,8 @@
    for more details.
 
    You should have received a copy of the GNU General Public License
-   along with GCC; see the file COPYING.  If not, write to the Free
-   Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
-   02110-1301, USA.  */
+   along with GCC; see the file COPYING.  If not, see
+   <https://www.gnu.org/licenses/>.  */
 
 /* ------------------------------------------------------------------ */
 /* Decimal 64-bit format module					      */