diff --git a/include/itkThinShellDemonsMetricv4.h b/include/itkThinShellDemonsMetricv4.h
index ba64d08..e0a47bf 100644
--- a/include/itkThinShellDemonsMetricv4.h
+++ b/include/itkThinShellDemonsMetricv4.h
@@ -6,7 +6,7 @@
  *  you may not use this file except in compliance with the License.
  *  You may obtain a copy of the License at
  *
- *         http://www.apache.org/licenses/LICENSE-2.0.txt
+ *         https://www.apache.org/licenses/LICENSE-2.0.txt
  *
  *  Unless required by applicable law or agreed to in writing, software
  *  distributed under the License is distributed on an "AS IS" BASIS,
diff --git a/include/itkThinShellDemonsMetricv4.hxx b/include/itkThinShellDemonsMetricv4.hxx
index 9470aba..61f8f07 100644
--- a/include/itkThinShellDemonsMetricv4.hxx
+++ b/include/itkThinShellDemonsMetricv4.hxx
@@ -6,7 +6,7 @@
  *  you may not use this file except in compliance with the License.
  *  You may obtain a copy of the License at
  *
- *         http://www.apache.org/licenses/LICENSE-2.0.txt
+ *         https://www.apache.org/licenses/LICENSE-2.0.txt
  *
  *  Unless required by applicable law or agreed to in writing, software
  *  distributed under the License is distributed on an "AS IS" BASIS,
diff --git a/test/itkThinShellDemonsTestv4_Affine.cxx b/test/itkThinShellDemonsTestv4_Affine.cxx
index c6f9a3f..5e36adc 100644
--- a/test/itkThinShellDemonsTestv4_Affine.cxx
+++ b/test/itkThinShellDemonsTestv4_Affine.cxx
@@ -6,7 +6,7 @@
  *  you may not use this file except in compliance with the License.
  *  You may obtain a copy of the License at
  *
- *         http://www.apache.org/licenses/LICENSE-2.0.txt
+ *         https://www.apache.org/licenses/LICENSE-2.0.txt
  *
  *  Unless required by applicable law or agreed to in writing, software
  *  distributed under the License is distributed on an "AS IS" BASIS,
diff --git a/test/itkThinShellDemonsTestv4_Displacement.cxx b/test/itkThinShellDemonsTestv4_Displacement.cxx
index d42eeea..2ebac44 100644
--- a/test/itkThinShellDemonsTestv4_Displacement.cxx
+++ b/test/itkThinShellDemonsTestv4_Displacement.cxx
@@ -6,7 +6,7 @@
  *  you may not use this file except in compliance with the License.
  *  You may obtain a copy of the License at
  *
- *         http://www.apache.org/licenses/LICENSE-2.0.txt
+ *         https://www.apache.org/licenses/LICENSE-2.0.txt
  *
  *  Unless required by applicable law or agreed to in writing, software
  *  distributed under the License is distributed on an "AS IS" BASIS,
diff --git a/test/itkThinShellDemonsTestv4_SyN.cxx b/test/itkThinShellDemonsTestv4_SyN.cxx
index b71bb0d..637bda1 100644
--- a/test/itkThinShellDemonsTestv4_SyN.cxx
+++ b/test/itkThinShellDemonsTestv4_SyN.cxx
@@ -6,7 +6,7 @@
  *  you may not use this file except in compliance with the License.
  *  You may obtain a copy of the License at
  *
- *         http://www.apache.org/licenses/LICENSE-2.0.txt
+ *         https://www.apache.org/licenses/LICENSE-2.0.txt
  *
  *  Unless required by applicable law or agreed to in writing, software
  *  distributed under the License is distributed on an "AS IS" BASIS,