diff --git a/templates b/templates
index 1aa96f5f8..f632b1cdb 160000
--- a/templates
+++ b/templates
@@ -1 +1 @@
-Subproject commit 1aa96f5f8b07478eccdb323c39a8dc0b569766ef
+Subproject commit f632b1cdb9cf23e4d5d0d78d9422303c47d1da3a
diff --git a/tests/html-reader.html b/tests/html-reader.html
index ea10a306c..69bb9ba8a 100644
--- a/tests/html-reader.html
+++ b/tests/html-reader.html
@@ -1,6 +1,7 @@
 <html>
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<meta http-equiv="Content-Style-Type" content="text/css" />
 <meta name="generator" content="pandoc" />
 <style type="text/css">
 div.pandocNote { border-left: 1px solid grey; padding-left: 1em; }
diff --git a/tests/lhs-test.html b/tests/lhs-test.html
index 75ad7b41f..268dd9b27 100644
--- a/tests/lhs-test.html
+++ b/tests/lhs-test.html
@@ -2,6 +2,7 @@
 <html xmlns="http://www.w3.org/1999/xhtml">
 <head>
   <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+  <meta http-equiv="Content-Style-Type" content="text/css" />
   <meta name="generator" content="pandoc" />
   <title></title>
   <style type="text/css">
diff --git a/tests/lhs-test.nohl.html b/tests/lhs-test.nohl.html
index cd5c0ac05..ebe437b18 100644
--- a/tests/lhs-test.nohl.html
+++ b/tests/lhs-test.nohl.html
@@ -2,6 +2,7 @@
 <html xmlns="http://www.w3.org/1999/xhtml">
 <head>
   <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+  <meta http-equiv="Content-Style-Type" content="text/css" />
   <meta name="generator" content="pandoc" />
   <title></title>
 </head>
diff --git a/tests/lhs-test.nohl.html+lhs b/tests/lhs-test.nohl.html+lhs
index 15c21f3be..c6205530d 100644
--- a/tests/lhs-test.nohl.html+lhs
+++ b/tests/lhs-test.nohl.html+lhs
@@ -2,6 +2,7 @@
 <html xmlns="http://www.w3.org/1999/xhtml">
 <head>
   <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+  <meta http-equiv="Content-Style-Type" content="text/css" />
   <meta name="generator" content="pandoc" />
   <title></title>
 </head>
diff --git a/tests/s5.basic.html b/tests/s5.basic.html
index 0658dcf4b..e309aec12 100644
--- a/tests/s5.basic.html
+++ b/tests/s5.basic.html
@@ -2,6 +2,7 @@
 <html xmlns="http://www.w3.org/1999/xhtml">
 <head>
   <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+  <meta http-equiv="Content-Style-Type" content="text/css" />
   <meta name="generator" content="pandoc" />
   <meta name="author" content="Sam Smith" />
   <meta name="author" content="Jen Jones" />
diff --git a/tests/s5.fancy.html b/tests/s5.fancy.html
index 39188bb1e..9c3a68939 100644
--- a/tests/s5.fancy.html
+++ b/tests/s5.fancy.html
@@ -2,6 +2,7 @@
 <html xmlns="http://www.w3.org/1999/xhtml">
 <head>
   <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+  <meta http-equiv="Content-Style-Type" content="text/css" />
   <meta name="generator" content="pandoc" />
   <meta name="author" content="Sam Smith" />
   <meta name="author" content="Jen Jones" />
diff --git a/tests/s5.inserts.html b/tests/s5.inserts.html
index 67832ea3d..5db05bf4c 100644
--- a/tests/s5.inserts.html
+++ b/tests/s5.inserts.html
@@ -2,6 +2,7 @@
 <html xmlns="http://www.w3.org/1999/xhtml">
 <head>
   <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+  <meta http-equiv="Content-Style-Type" content="text/css" />
   <meta name="generator" content="pandoc" />
   <meta name="author" content="Sam Smith" />
   <meta name="author" content="Jen Jones" />
diff --git a/tests/writer.html b/tests/writer.html
index 279c33019..58cb69129 100644
--- a/tests/writer.html
+++ b/tests/writer.html
@@ -2,6 +2,7 @@
 <html xmlns="http://www.w3.org/1999/xhtml">
 <head>
   <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+  <meta http-equiv="Content-Style-Type" content="text/css" />
   <meta name="generator" content="pandoc" />
   <meta name="author" content="John MacFarlane" />
   <meta name="author" content="Anonymous" />
