diff --git a/.babelrc b/.babelrc
index 714f21eae..0787eddc4 100644
--- a/.babelrc
+++ b/.babelrc
@@ -6,12 +6,13 @@
         // See config/browser.rb
         "browsers": [
           "> 1%",
-          "Chrome 40",
-          "IE 11",
-          "Edge 12",
-          "Firefox 45",
-          "Safari 8",
-          "iOS 8"
+          "Chrome >= 50",
+          "IE >= 11",
+          "Edge >= 14",
+          "Firefox >= 50",
+          "Opera >= 40",
+          "Safari >= 8",
+          "iOS >= 8"
         ],
         "uglify": true
       },
diff --git a/app/assets/stylesheets/new_design/_colors.scss b/app/assets/stylesheets/new_design/_colors.scss
index 086abb191..b07ace308 100644
--- a/app/assets/stylesheets/new_design/_colors.scss
+++ b/app/assets/stylesheets/new_design/_colors.scss
@@ -1,5 +1,6 @@
 $blue: #0069CC;
 $light-blue: #1C7EC9;
+$lighter-blue: #C3D9FF;
 $black: #333333;
 $grey: #999999;
 $light-grey: #F8F8F8;
diff --git a/app/assets/stylesheets/new_design/support_navigator_banner.scss b/app/assets/stylesheets/new_design/support_navigator_banner.scss
index 956c82ec4..36189f7d1 100644
--- a/app/assets/stylesheets/new_design/support_navigator_banner.scss
+++ b/app/assets/stylesheets/new_design/support_navigator_banner.scss
@@ -14,7 +14,7 @@
   z-index: 1000;
 
   a {
-    color: #C3D9FF;
+    color: $lighter-blue;
     text-decoration: underline;
   }
 }
diff --git a/app/views/layouts/_support_navigator_banner.html.haml b/app/views/layouts/_support_navigator_banner.html.haml
index 95f7955d1..fff24dcfd 100644
--- a/app/views/layouts/_support_navigator_banner.html.haml
+++ b/app/views/layouts/_support_navigator_banner.html.haml
@@ -2,12 +2,10 @@
 - if !browser.modern?
   #support-navigator-banner.row
     .col-xs-12
-      = browser.name
-      = browser.version
-      \-
-      Attention, votre navigateur est trop ancien pour utiliser Démarches Simplifiées : certaines parties du site ne fonctionneront pas correctement.
+      Attention, votre navigateur (#{browser.name} #{browser.version}) est trop ancien pour utiliser demarches-simplifiees.fr : certaines parties du site ne fonctionneront pas correctement.
       %br/
       %br/
       Nous vous recommendons fortement de
-      %a{ href: "https://browser-update.org/fr/update.html" }mettre à jour votre navigateur
-      \.
+      %a{ href: "https://browser-update.org/fr/update.html", target: "_blank" }mettre à jour votre navigateur
+      %span<>
+        \.
diff --git a/config/initializers/browser.rb b/config/initializers/browser.rb
index eb506559f..9294e4cfe 100644
--- a/config/initializers/browser.rb
+++ b/config/initializers/browser.rb
@@ -1,8 +1,8 @@
 # See .babelrc
 Browser.modern_rules.clear
-Browser.modern_rules << -> b { b.chrome? && b.version.to_i >= 40 }
-Browser.modern_rules << -> b { b.ie?([">=11"]) }
-Browser.modern_rules << -> b { b.edge? }
-Browser.modern_rules << -> b { b.firefox? && b.version.to_i >= 45 }
-Browser.modern_rules << -> b { b.opera? && b.version.to_i >= 19 }
+Browser.modern_rules << -> b { b.chrome? && b.version.to_i >= 50 }
+Browser.modern_rules << -> b { b.ie? && b.version.to_i >= 11 && !b.compatibility_view? }
+Browser.modern_rules << -> b { b.edge? && b.version.to_i >= 14 && !b.compatibility_view? }
+Browser.modern_rules << -> b { b.firefox? && b.version.to_i >= 50 }
+Browser.modern_rules << -> b { b.opera? && b.version.to_i >= 40 }
 Browser.modern_rules << -> b { b.safari? && b.version.to_i >= 8 }