diff --git a/build/org.eclipse.cdt.autotools.docs/build-helper.xml b/build/org.eclipse.cdt.autotools.docs/build-helper.xml
index 7831830028f..6f27ae990c1 100644
--- a/build/org.eclipse.cdt.autotools.docs/build-helper.xml
+++ b/build/org.eclipse.cdt.autotools.docs/build-helper.xml
@@ -16,7 +16,7 @@
             Generate Eclipse help content for the CDT autotools user guide
     </description>
 
-	<property name="autotools.help.doc.url.base" value="http://wiki.eclipse.org"/>
+	<property name="autotools.help.doc.url.base" value="https://wiki.eclipse.org"/>
 	<property name="autotools.wiki.url.base" value="${autotools.help.doc.url.base}/CDT/Autotools"/>
 	<property name="imageFolder" value="images"/>
 
diff --git a/build/org.eclipse.cdt.autotools.docs/tools.xml b/build/org.eclipse.cdt.autotools.docs/tools.xml
index 40c2720bbbc..d3e6fd9c054 100644
--- a/build/org.eclipse.cdt.autotools.docs/tools.xml
+++ b/build/org.eclipse.cdt.autotools.docs/tools.xml
@@ -2,10 +2,10 @@
 <?NLS TYPE="org.eclipse.help.toc"?>
 
 <toc label="GNU Tools On-line Documentation">
-        <topic label="gcc"  href="http://gcc.gnu.org/onlinedocs/"/>
-        <topic label="binutils" href="http://sourceware.org/binutils/docs/"/>
-        <topic label="autoconf" href="http://www.gnu.org/software/autoconf/manual/html_node/index.html"/>
-        <topic label="automake" href="http://www.gnu.org/software/automake/manual/html_node/index.html"/>
-        <topic label="pkg-config" href="http://people.freedesktop.org/~dbn/pkg-config-guide.html"/>
+        <topic label="gcc"  href="https://gcc.gnu.org/onlinedocs/"/>
+        <topic label="binutils" href="https://sourceware.org/binutils/docs/"/>
+        <topic label="autoconf" href="https://www.gnu.org/software/autoconf/manual/html_node/index.html"/>
+        <topic label="automake" href="https://www.gnu.org/software/automake/manual/html_node/index.html"/>
+        <topic label="pkg-config" href="https://people.freedesktop.org/~dbn/pkg-config-guide.html"/>
  <anchor id="moregnutools"/>
 </toc>
diff --git a/build/org.eclipse.cdt.meson.docs/CDT/Meson/User_Guide/Updating-This-Document.html b/build/org.eclipse.cdt.meson.docs/CDT/Meson/User_Guide/Updating-This-Document.html
index c18c44a58b1..8db463650cf 100644
--- a/build/org.eclipse.cdt.meson.docs/CDT/Meson/User_Guide/Updating-This-Document.html
+++ b/build/org.eclipse.cdt.meson.docs/CDT/Meson/User_Guide/Updating-This-Document.html
@@ -28,7 +28,7 @@
 		<h1 id="Updating_This_Document">Updating This Document</h1>
 		<p>This document is maintained in a collaborative wiki.  If you wish to update or modify this document please visit 
 
-			<a href="http://wiki.eclipse.org/CDT/Meson/User_Guide">http://wiki.eclipse.org/CDT/Meson/User_Guide</a>
+			<a href="https://wiki.eclipse.org/CDT/Meson/User_Guide">https://wiki.eclipse.org/CDT/Meson/User_Guide</a>
 		</p><hr class="navigation-separator"/>
 		<table class="navigation" style="width: 100%;" border="0" summary="navigation">
 			<tr>
diff --git a/build/org.eclipse.cdt.meson.docs/CDT/Meson/User_Guide/User-Guide.html b/build/org.eclipse.cdt.meson.docs/CDT/Meson/User_Guide/User-Guide.html
index caa7687d8dd..0049833145c 100644
--- a/build/org.eclipse.cdt.meson.docs/CDT/Meson/User_Guide/User-Guide.html
+++ b/build/org.eclipse.cdt.meson.docs/CDT/Meson/User_Guide/User-Guide.html
@@ -39,7 +39,7 @@
 		<p>This file tells <i>meson</i> that the project name hello is a C project and that it creates a single executable called <i>hello</i> which is formed from <i>hello.c</i>.  Meson will find the C compiler, etc.. needed to build this project on this build machine.</p>
 		<p>Running meson in the directory containing <i>meson.build</i> will create a <i>ninja.build</i> file in the <b>build</b> directory (or specified build directory).</p>
 		<p>For more details see: 
-			<a href="http://mesonbuild.com/">http://mesonbuild.com/</a>
+			<a href="https://mesonbuild.com/">https://mesonbuild.com/</a>
 		</p><hr class="navigation-separator"/>
 		<table class="navigation" style="width: 100%;" border="0" summary="navigation">
 			<tr>
diff --git a/build/org.eclipse.cdt.meson.docs/build-helper.xml b/build/org.eclipse.cdt.meson.docs/build-helper.xml
index bfa7504a91b..d013909f9a3 100644
--- a/build/org.eclipse.cdt.meson.docs/build-helper.xml
+++ b/build/org.eclipse.cdt.meson.docs/build-helper.xml
@@ -29,7 +29,7 @@
 = Updating This Document =
 				
 This document is maintained in a collaborative wiki.  If you wish to update or modify this document please visit 
-http://wiki.eclipse.org/CDT/Meson/User_Guide
+https://wiki.eclipse.org/CDT/Meson/User_Guide
             </pageAppendum>
 		</mediawiki-to-eclipse-help>
 		<replace file="CDT/Meson/User_Guide/User-Guide.html" token="{{#eclipseproject:tools.cdt}}" value=""/>