diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9c9ea617..c4e56836 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+0.14.6
+------
+#### Changes
+- Survive coveralls maintenance and outagle (#283).
+  - Better handling of coveralls.io errors (ex. 405, 500 status codes).
+
 0.14.5
 ------
 #### Enhancements
diff --git a/README.md b/README.md
index 6a5bae3c..03edcc58 100644
--- a/README.md
+++ b/README.md
@@ -468,6 +468,18 @@ defmodule MyModule do
 end
 ```
 
+### Silence OTP Cover Warnings
+To remove OTP warnings about modules or specific logging, you can copy the `cover.erl` file under `src/` of your Elixir project and modify it to remove the warnings, as a tentative solution.
+
+- Remove the 2 lines below to remove the "WARNING: Module already imported from ..." log
+https://github.com/erlang/otp/blob/131398b54cca5f1ae95ed268274936d2efde8c39/lib/tools/src/cover.erl#L1553-L1554
+
+- If you do not want the imported info cluttering your test output, replace the function in https://github.com/erlang/otp/blob/131398b54cca5f1ae95ed268274936d2efde8c39/lib/tools/src/cover.erl#L1520-L1525 with
+```
+imported_info(_Text,_Module,_Imported) ->
+    ok.
+```
+
 ### Notes
 - If mock library is used, it will show some warnings during execution.
     - https://github.com/eproxus/meck/pull/17
diff --git a/lib/excoveralls/poster.ex b/lib/excoveralls/poster.ex
index fba50f3d..fca0a6ec 100644
--- a/lib/excoveralls/poster.ex
+++ b/lib/excoveralls/poster.ex
@@ -43,6 +43,10 @@ defmodule ExCoveralls.Poster do
       {:ok, status_code, _, _} when status_code in 200..299 ->
         {:ok, "Successfully uploaded the report to '#{endpoint}'."}
 
+      {:ok, 500 = _status_code, _, _client} ->
+        {:ok, "API endpoint `#{endpoint}` is not available and return internal server error! Ignoring upload"}
+      {:ok, 405 = _status_code, _, _client} ->
+        {:ok, "API endpoint `#{endpoint}` is not available due to maintenance! Ignoring upload"}
       {:ok, status_code, _, client} ->
         {:ok, body} = :hackney.body(client)
 
diff --git a/mix.exs b/mix.exs
index 660f6035..dcf40ad2 100644
--- a/mix.exs
+++ b/mix.exs
@@ -6,7 +6,7 @@ defmodule ExCoveralls.Mixfile do
   def project do
     [
       app: :excoveralls,
-      version: "0.14.5",
+      version: "0.14.6",
       elixir: "~> 1.3",
       elixirc_paths: elixirc_paths(Mix.env()),
       deps: deps(),
diff --git a/test/poster_test.exs b/test/poster_test.exs
index a5e07911..ad3952e2 100644
--- a/test/poster_test.exs
+++ b/test/poster_test.exs
@@ -21,4 +21,16 @@ defmodule PosterTest do
       assert ExCoveralls.Poster.execute("json") == :ok
     end) =~ ~r/timeout/
   end
+
+  test_with_mock "post json fails due internal server error", :hackney, [request: fn(_, _, _, _, _) -> {:ok, 500, "", ""} end] do
+    assert capture_io(fn ->
+      assert ExCoveralls.Poster.execute("json") == :ok
+    end) =~ ~r/internal server error/
+  end
+
+  test_with_mock "post json fails due to maintenance", :hackney, [request: fn(_, _, _, _, _) -> {:ok, 405, "", ""} end] do
+    assert capture_io(fn ->
+      assert ExCoveralls.Poster.execute("json") == :ok
+    end) =~ ~r/maintenance/
+  end
 end