diff --git a/provision.py b/provision.py
index 33f567c32d..5a2db37325 100644
--- a/provision.py
+++ b/provision.py
@@ -36,6 +36,8 @@ APT_DEPENDENCIES = {
         "git",
         "npm",
         "yui-compressor",
+        "wget",
+        "ca-certificates",      # Explicit dependency in case e.g. wget is already installed
         "puppet",               # Used by lint-all
         "gettext",              # Used by makemessages i18n
     ]