diff --git a/Changes b/Changes
index 032cc11..d74945a 100644
--- a/Changes
+++ b/Changes
@@ -1,3 +1,9 @@
+2.3 [2019-01-17]
+ * use the dark-coloured icon by default
+   Thanks to Arnaud Rebillout
+ * bump minimum required version to 57 to guarantee support
+   for all the used features
+
 2.2 [2018-09-26]
  * remove leading/trailing white-space before evaluating input's
    likeliness
diff --git a/manifest.json b/manifest.json
index bf94771..afe7d62 100644
--- a/manifest.json
+++ b/manifest.json
@@ -2,15 +2,15 @@
   "applications": {
     "gecko": {
       "id": "{8fb11c5b-84eb-4da0-9128-292eacce2dcb}",
-      "strict_min_version": "42.0"
+      "strict_min_version": "57.0"
     }
   },
   "author": "Damyan Ivanov",
   "manifest_version": 2,
-  "version": "2.2",
+  "version": "2.3",
   "name": "Debian queries",
   "description": "Query Debian-related websites using the text in the clipboard",
-  "homepage_url": "http://icedeb.ktnx.net/",
+  "homepage_url": "https://icedeb.ktnx.net/",
   "icons": {
       "48": "icons/openlogo-nd.svg"
   },
@@ -19,7 +19,7 @@
   ],
   "browser_action": {
     "browser_style": true,
-    "default_icon": "icons/icedeb-addon-light.svg",
+    "default_icon": "icons/icedeb-addon-dark.svg",
     "default_title": "Query Debian websites",
     "default_popup": "icedeb.html",
     "theme_icons": [