diff --git a/library/src/main/java/de/psdev/licensesdialog/licenses/ApacheSoftwareLicense20.java b/library/src/main/java/de/psdev/licensesdialog/licenses/ApacheSoftwareLicense20.java
index e84112d..5f91349 100644
--- a/library/src/main/java/de/psdev/licensesdialog/licenses/ApacheSoftwareLicense20.java
+++ b/library/src/main/java/de/psdev/licensesdialog/licenses/ApacheSoftwareLicense20.java
@@ -45,7 +45,7 @@ public String getVersion() {
 
     @Override
     public String getUrl() {
-        return "http://www.apache.org/licenses/LICENSE-2.0.txt";
+        return "https://www.apache.org/licenses/LICENSE-2.0.txt";
     }
 
 
diff --git a/library/src/main/java/de/psdev/licensesdialog/licenses/BSD2ClauseLicense.java b/library/src/main/java/de/psdev/licensesdialog/licenses/BSD2ClauseLicense.java
index bb1e606..3bf55a2 100644
--- a/library/src/main/java/de/psdev/licensesdialog/licenses/BSD2ClauseLicense.java
+++ b/library/src/main/java/de/psdev/licensesdialog/licenses/BSD2ClauseLicense.java
@@ -45,7 +45,7 @@ public String getVersion() {
 
     @Override
     public String getUrl() {
-        return "http://opensource.org/licenses/BSD-2-Clause";
+        return "https://opensource.org/licenses/BSD-2-Clause";
     }
 
 }
diff --git a/library/src/main/java/de/psdev/licensesdialog/licenses/BSD3ClauseLicense.java b/library/src/main/java/de/psdev/licensesdialog/licenses/BSD3ClauseLicense.java
index 708b37b..26134d2 100644
--- a/library/src/main/java/de/psdev/licensesdialog/licenses/BSD3ClauseLicense.java
+++ b/library/src/main/java/de/psdev/licensesdialog/licenses/BSD3ClauseLicense.java
@@ -45,7 +45,7 @@ public String getVersion() {
 
     @Override
     public String getUrl() {
-        return "http://opensource.org/licenses/BSD-3-Clause";
+        return "https://opensource.org/licenses/BSD-3-Clause";
     }
 
 }
diff --git a/library/src/main/java/de/psdev/licensesdialog/licenses/CreativeCommonsAttribution30Unported.java b/library/src/main/java/de/psdev/licensesdialog/licenses/CreativeCommonsAttribution30Unported.java
index ca42873..868a27b 100644
--- a/library/src/main/java/de/psdev/licensesdialog/licenses/CreativeCommonsAttribution30Unported.java
+++ b/library/src/main/java/de/psdev/licensesdialog/licenses/CreativeCommonsAttribution30Unported.java
@@ -45,7 +45,7 @@ public String getVersion() {
 
     @Override
     public String getUrl() {
-        return "http://creativecommons.org/licenses/by/3.0/";
+        return "https://creativecommons.org/licenses/by/3.0/";
     }
 
 }
diff --git a/library/src/main/java/de/psdev/licensesdialog/licenses/CreativeCommonsAttributionNoDerivs30Unported.java b/library/src/main/java/de/psdev/licensesdialog/licenses/CreativeCommonsAttributionNoDerivs30Unported.java
index 8ed71f9..d586b6d 100644
--- a/library/src/main/java/de/psdev/licensesdialog/licenses/CreativeCommonsAttributionNoDerivs30Unported.java
+++ b/library/src/main/java/de/psdev/licensesdialog/licenses/CreativeCommonsAttributionNoDerivs30Unported.java
@@ -43,7 +43,7 @@ public String getVersion() {
 
     @Override
     public String getUrl() {
-        return "http://creativecommons.org/licenses/by-nd/3.0/";
+        return "https://creativecommons.org/licenses/by-nd/3.0/";
     }
 
 }
diff --git a/library/src/main/java/de/psdev/licensesdialog/licenses/CreativeCommonsAttributionShareAlike30Unported.java b/library/src/main/java/de/psdev/licensesdialog/licenses/CreativeCommonsAttributionShareAlike30Unported.java
index 0baf46b..8931687 100644
--- a/library/src/main/java/de/psdev/licensesdialog/licenses/CreativeCommonsAttributionShareAlike30Unported.java
+++ b/library/src/main/java/de/psdev/licensesdialog/licenses/CreativeCommonsAttributionShareAlike30Unported.java
@@ -46,7 +46,7 @@ public String getVersion() {
 
     @Override
     public String getUrl() {
-        return "http://creativecommons.org/licenses/by-sa/3.0/";
+        return "https://creativecommons.org/licenses/by-sa/3.0/";
     }
 
 }
diff --git a/library/src/main/java/de/psdev/licensesdialog/licenses/EclipsePublicLicense10.java b/library/src/main/java/de/psdev/licensesdialog/licenses/EclipsePublicLicense10.java
index 705a96f..a4ed5c5 100644
--- a/library/src/main/java/de/psdev/licensesdialog/licenses/EclipsePublicLicense10.java
+++ b/library/src/main/java/de/psdev/licensesdialog/licenses/EclipsePublicLicense10.java
@@ -28,6 +28,6 @@ public String getVersion() {
 
     @Override
     public String getUrl() {
-        return "http://www.eclipse.org/legal/epl-v10.html";
+        return "https://www.eclipse.org/legal/epl-v10.html";
     }
 }
diff --git a/library/src/main/java/de/psdev/licensesdialog/licenses/GnuGeneralPublicLicense20.java b/library/src/main/java/de/psdev/licensesdialog/licenses/GnuGeneralPublicLicense20.java
index 9619aed..18bec65 100644
--- a/library/src/main/java/de/psdev/licensesdialog/licenses/GnuGeneralPublicLicense20.java
+++ b/library/src/main/java/de/psdev/licensesdialog/licenses/GnuGeneralPublicLicense20.java
@@ -43,6 +43,6 @@ public String getVersion() {
 
     @Override
     public String getUrl() {
-        return "http://www.gnu.org/licenses/";
+        return "https://www.gnu.org/licenses/";
     }
 }
diff --git a/library/src/main/java/de/psdev/licensesdialog/licenses/GnuGeneralPublicLicense30.java b/library/src/main/java/de/psdev/licensesdialog/licenses/GnuGeneralPublicLicense30.java
index fd89f6d..196a9cf 100644
--- a/library/src/main/java/de/psdev/licensesdialog/licenses/GnuGeneralPublicLicense30.java
+++ b/library/src/main/java/de/psdev/licensesdialog/licenses/GnuGeneralPublicLicense30.java
@@ -43,6 +43,6 @@ public String getVersion() {
 
     @Override
     public String getUrl() {
-        return "http://www.gnu.org/licenses/";
+        return "https://www.gnu.org/licenses/";
     }
 }
diff --git a/library/src/main/java/de/psdev/licensesdialog/licenses/GnuLesserGeneralPublicLicense21.java b/library/src/main/java/de/psdev/licensesdialog/licenses/GnuLesserGeneralPublicLicense21.java
index 209f9e1..0ebe15a 100644
--- a/library/src/main/java/de/psdev/licensesdialog/licenses/GnuLesserGeneralPublicLicense21.java
+++ b/library/src/main/java/de/psdev/licensesdialog/licenses/GnuLesserGeneralPublicLicense21.java
@@ -44,7 +44,7 @@ public String getVersion() {
 
     @Override
     public String getUrl() {
-        return "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html";
+        return "https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html";
     }
 
 }
diff --git a/library/src/main/java/de/psdev/licensesdialog/licenses/GnuLesserGeneralPublicLicense3.java b/library/src/main/java/de/psdev/licensesdialog/licenses/GnuLesserGeneralPublicLicense3.java
index ec24b16..1c9dd9b 100644
--- a/library/src/main/java/de/psdev/licensesdialog/licenses/GnuLesserGeneralPublicLicense3.java
+++ b/library/src/main/java/de/psdev/licensesdialog/licenses/GnuLesserGeneralPublicLicense3.java
@@ -45,7 +45,7 @@ public String getVersion() {
 
     @Override
     public String getUrl() {
-        return "http://www.gnu.org/licenses/lgpl.html";
+        return "https://www.gnu.org/licenses/lgpl.html";
     }
 
 }
diff --git a/library/src/main/java/de/psdev/licensesdialog/licenses/ISCLicense.java b/library/src/main/java/de/psdev/licensesdialog/licenses/ISCLicense.java
index 14f5b8b..8c53b57 100644
--- a/library/src/main/java/de/psdev/licensesdialog/licenses/ISCLicense.java
+++ b/library/src/main/java/de/psdev/licensesdialog/licenses/ISCLicense.java
@@ -44,6 +44,6 @@ public String getVersion() {
 
     @Override
     public String getUrl() {
-        return "http://opensource.org/licenses/isc-license.txt";
+        return "https://opensource.org/licenses/isc-license.txt";
     }
 }
diff --git a/library/src/main/java/de/psdev/licensesdialog/licenses/MITLicense.java b/library/src/main/java/de/psdev/licensesdialog/licenses/MITLicense.java
index db410ae..57b17ab 100644
--- a/library/src/main/java/de/psdev/licensesdialog/licenses/MITLicense.java
+++ b/library/src/main/java/de/psdev/licensesdialog/licenses/MITLicense.java
@@ -45,7 +45,7 @@ public String getVersion() {
 
     @Override
     public String getUrl() {
-        return "http://opensource.org/licenses/MIT";
+        return "https://opensource.org/licenses/MIT";
     }
 
 }
diff --git a/library/src/main/java/de/psdev/licensesdialog/licenses/MozillaPublicLicense11.java b/library/src/main/java/de/psdev/licensesdialog/licenses/MozillaPublicLicense11.java
index fb4d601..7ad5517 100644
--- a/library/src/main/java/de/psdev/licensesdialog/licenses/MozillaPublicLicense11.java
+++ b/library/src/main/java/de/psdev/licensesdialog/licenses/MozillaPublicLicense11.java
@@ -46,7 +46,7 @@ public String getVersion() {
 
     @Override
     public String getUrl() {
-        return "http://mozilla.org/MPL/1.1/";
+        return "https://mozilla.org/MPL/1.1/";
     }
 
 }
diff --git a/library/src/main/java/de/psdev/licensesdialog/licenses/MozillaPublicLicense20.java b/library/src/main/java/de/psdev/licensesdialog/licenses/MozillaPublicLicense20.java
index d2840e4..b353253 100644
--- a/library/src/main/java/de/psdev/licensesdialog/licenses/MozillaPublicLicense20.java
+++ b/library/src/main/java/de/psdev/licensesdialog/licenses/MozillaPublicLicense20.java
@@ -44,7 +44,7 @@ public String getVersion() {
 
     @Override
     public String getUrl() {
-        return "http://mozilla.org/MPL/2.0/";
+        return "https://mozilla.org/MPL/2.0/";
     }
 
 }
\ No newline at end of file
diff --git a/library/src/main/java/de/psdev/licensesdialog/licenses/SILOpenFontLicense11.java b/library/src/main/java/de/psdev/licensesdialog/licenses/SILOpenFontLicense11.java
index 58d304f..7312f89 100644
--- a/library/src/main/java/de/psdev/licensesdialog/licenses/SILOpenFontLicense11.java
+++ b/library/src/main/java/de/psdev/licensesdialog/licenses/SILOpenFontLicense11.java
@@ -44,7 +44,7 @@ public String getVersion() {
 
     @Override
     public String getUrl() {
-        return "http://opensource.org/licenses/OFL-1.1";
+        return "https://opensource.org/licenses/OFL-1.1";
     }
 
 }