diff --git a/src/KOKKOS/math_special_kokkos.cpp b/src/KOKKOS/math_special_kokkos.cpp
index f5fc725347..59da5273f9 100644
--- a/src/KOKKOS/math_special_kokkos.cpp
+++ b/src/KOKKOS/math_special_kokkos.cpp
@@ -44,7 +44,7 @@ using namespace LAMMPS_NS;
  *   Joachim Wuttke, Forschungszentrum Jülich, 2013, package maintainer
  *
  * Website:
- *   http://apps.jcns.fz-juelich.de/libcerf
+ *   https://jugit.fz-juelich.de/mlz/libcerf
  *
  * Revision history:
  *   ../CHANGELOG
diff --git a/src/math_special.cpp b/src/math_special.cpp
index c8aa248910..5ec0fc3f61 100644
--- a/src/math_special.cpp
+++ b/src/math_special.cpp
@@ -43,7 +43,7 @@ using namespace LAMMPS_NS;
  *   Joachim Wuttke, Forschungszentrum Jülich, 2013, package maintainer
  *
  * Website:
- *   http://apps.jcns.fz-juelich.de/libcerf
+ *   https://jugit.fz-juelich.de/mlz/libcerf
  *
  * Revision history:
  *   ../CHANGELOG