diff --git a/CHANGELOG.md b/CHANGELOG.md
index f84815afd..cd0541eb3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,11 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## [1.0.6] - 2019-08-14
+### Fixed
+- MRF: fix use of unserializable keyword lists in describe() implementations
+- ActivityPub S2S: POST requests are now signed with `(request-target)` pseudo-header.
+
 ## [1.0.5] - 2019-08-13
 ### Fixed
 - Mastodon API: follower/following counters not being nullified, when `hide_follows`/`hide_followers` is set
diff --git a/lib/pleroma/web/activity_pub/mrf/hellthread_policy.ex b/lib/pleroma/web/activity_pub/mrf/hellthread_policy.ex
index 621c9fa24..59957739f 100644
--- a/lib/pleroma/web/activity_pub/mrf/hellthread_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/hellthread_policy.ex
@@ -89,5 +89,6 @@ def filter(%{"type" => "Create"} = message) do
   def filter(message), do: {:ok, message}
 
   @impl true
-  def describe, do: {:ok, %{mrf_hellthread: Pleroma.Config.get([:mrf_hellthread])}}
+  def describe,
+    do: {:ok, %{mrf_hellthread: Pleroma.Config.get(:mrf_hellthread) |> Enum.into(%{})}}
 end
diff --git a/lib/pleroma/web/activity_pub/mrf/reject_non_public.ex b/lib/pleroma/web/activity_pub/mrf/reject_non_public.ex
index adaeb1c91..e058846a3 100644
--- a/lib/pleroma/web/activity_pub/mrf/reject_non_public.ex
+++ b/lib/pleroma/web/activity_pub/mrf/reject_non_public.ex
@@ -50,5 +50,6 @@ def filter(%{"type" => "Create"} = object) do
   def filter(object), do: {:ok, object}
 
   @impl true
-  def describe, do: {:ok, %{mrf_rejectnonpublic: Pleroma.Config.get([:mrf_rejectnonpublic])}}
+  def describe,
+    do: {:ok, %{mrf_rejectnonpublic: Pleroma.Config.get(:mrf_rejectnonpublic) |> Enum.into(%{})}}
 end
diff --git a/lib/pleroma/web/activity_pub/mrf/vocabulary_policy.ex b/lib/pleroma/web/activity_pub/mrf/vocabulary_policy.ex
index 74da8d57e..4eaea00d8 100644
--- a/lib/pleroma/web/activity_pub/mrf/vocabulary_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/vocabulary_policy.ex
@@ -32,5 +32,6 @@ def filter(%{"type" => message_type} = message) do
 
   def filter(message), do: {:ok, message}
 
-  def describe, do: {:ok, %{mrf_vocabulary: Pleroma.Config.get(:mrf_vocabulary)}}
+  def describe,
+    do: {:ok, %{mrf_vocabulary: Pleroma.Config.get(:mrf_vocabulary) |> Enum.into(%{})}}
 end
diff --git a/lib/pleroma/web/activity_pub/publisher.ex b/lib/pleroma/web/activity_pub/publisher.ex
index 3d181f57c..d02c23581 100644
--- a/lib/pleroma/web/activity_pub/publisher.ex
+++ b/lib/pleroma/web/activity_pub/publisher.ex
@@ -44,7 +44,7 @@ def is_representable?(%Activity{} = activity) do
   """
   def publish_one(%{inbox: inbox, json: json, actor: %User{} = actor, id: id} = params) do
     Logger.info("Federating #{id} to #{inbox}")
-    host = URI.parse(inbox).host
+    %{host: host, path: path} = URI.parse(inbox)
 
     digest = "SHA-256=" <> (:crypto.hash(:sha256, json) |> Base.encode64())
 
@@ -54,6 +54,7 @@ def publish_one(%{inbox: inbox, json: json, actor: %User{} = actor, id: id} = pa
 
     signature =
       Pleroma.Signature.sign(actor, %{
+        "(request-target)": "post #{path}",
         host: host,
         "content-length": byte_size(json),
         digest: digest,
diff --git a/mix.exs b/mix.exs
index 58d7d3b67..abaad394d 100644
--- a/mix.exs
+++ b/mix.exs
@@ -95,7 +95,7 @@ defp oauth_deps do
   defp deps do
     [
       {:phoenix, "~> 1.4.8"},
-      {:tzdata, "~> 1.0"},
+      {:tzdata, "~> 0.5.21"},
       {:plug_cowboy, "~> 2.0"},
       {:phoenix_pubsub, "~> 1.1"},
       {:phoenix_ecto, "~> 4.0"},
diff --git a/mix.lock b/mix.lock
index 699a2ee2e..1ccdc7f5a 100644
--- a/mix.lock
+++ b/mix.lock
@@ -83,7 +83,7 @@
   "tesla": {:hex, :tesla, "1.2.1", "864783cc27f71dd8c8969163704752476cec0f3a51eb3b06393b3971dc9733ff", [:mix], [{:exjsx, ">= 3.0.0", [hex: :exjsx, repo: "hexpm", optional: true]}, {:fuse, "~> 2.4", [hex: :fuse, repo: "hexpm", optional: true]}, {:hackney, "~> 1.6", [hex: :hackney, repo: "hexpm", optional: true]}, {:ibrowse, "~> 4.4.0", [hex: :ibrowse, repo: "hexpm", optional: true]}, {:jason, ">= 1.0.0", [hex: :jason, repo: "hexpm", optional: true]}, {:mime, "~> 1.0", [hex: :mime, repo: "hexpm", optional: false]}, {:poison, ">= 1.0.0", [hex: :poison, repo: "hexpm", optional: true]}], "hexpm"},
   "timex": {:hex, :timex, "3.6.1", "efdf56d0e67a6b956cc57774353b0329c8ab7726766a11547e529357ffdc1d56", [:mix], [{:combine, "~> 0.10", [hex: :combine, repo: "hexpm", optional: false]}, {:gettext, "~> 0.10", [hex: :gettext, repo: "hexpm", optional: false]}, {:tzdata, "~> 0.1.8 or ~> 0.5 or ~> 1.0.0", [hex: :tzdata, repo: "hexpm", optional: false]}], "hexpm"},
   "trailing_format_plug": {:hex, :trailing_format_plug, "0.0.7", "64b877f912cf7273bed03379936df39894149e35137ac9509117e59866e10e45", [:mix], [{:plug, "> 0.12.0", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm"},
-  "tzdata": {:hex, :tzdata, "1.0.1", "f6027a331af7d837471248e62733c6ebee86a72e57c613aa071ebb1f750fc71a", [:mix], [{:hackney, "~> 1.0", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm"},
+  "tzdata": {:hex, :tzdata, "0.5.21", "8cbf3607fcce69636c672d5be2bbb08687fe26639a62bdcc283d267277db7cf0", [:mix], [{:hackney, "~> 1.0", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm"},
   "ueberauth": {:hex, :ueberauth, "0.6.1", "9e90d3337dddf38b1ca2753aca9b1e53d8a52b890191cdc55240247c89230412", [:mix], [{:plug, "~> 1.5", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm"},
   "unicode_util_compat": {:hex, :unicode_util_compat, "0.4.1", "d869e4c68901dd9531385bb0c8c40444ebf624e60b6962d95952775cac5e90cd", [:rebar3], [], "hexpm"},
   "unsafe": {:hex, :unsafe, "1.0.0", "7c21742cd05380c7875546b023481d3a26f52df8e5dfedcb9f958f322baae305", [:mix], [], "hexpm"},