diff --git a/docker-compose.yml b/docker-compose.yml
index ced996e4..7afbc3fd 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -41,7 +41,7 @@ postgres:
     - COG_HIPCHAT_ENABLED=false
 
 cog:
-  image: operable/cog:0.15-beta2
+  image: operable/cog:0.15
   environment:
     - COG_MQTT_HOST=0.0.0.0
     - DATABASE_URL=ecto://cog:cog@postgres:5432/cog
@@ -55,7 +55,7 @@ cog:
   entrypoint: /home/operable/cog/scripts/docker-start
 
 relay:
-  image: operable/relay:0.15-beta2
+  image: operable/relay:0.15
   privileged: true
   volumes:
     - /var/run/docker.sock:/var/run/docker.sock
diff --git a/mix.exs b/mix.exs
index db3b50fd..43f2cace 100644
--- a/mix.exs
+++ b/mix.exs
@@ -60,12 +60,12 @@ defmodule Cog.Mixfile do
     [
       # Operable Code
       ########################################################################
-      {:adz, github: "operable/adz", branch: "v0.15.0"},
-      {:conduit, github: "operable/conduit", branch: "v0.15.0"},
+      {:adz, github: "operable/adz", tag: "0.15.0"},
+      {:conduit, github: "operable/conduit", tag: "0.15.0"},
       {:fumanchu, github: "operable/fumanchu"},
-      {:greenbar, github: "operable/greenbar", branch: "v0.15.0"},
-      {:probe, github: "operable/probe", branch: "v0.15.0"},
-      {:spanner, github: "operable/spanner", branch: "v0.15.0"},
+      {:greenbar, github: "operable/greenbar", tag: "0.15.0"},
+      {:probe, github: "operable/probe", tag: "0.15.0"},
+      {:spanner, github: "operable/spanner", tag: "0.15.0"},
 
       # MQTT-related
       ########################################################################
diff --git a/mix.lock b/mix.lock
index a846cfdc..b912aad8 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,10 +1,10 @@
-%{"adz": {:git, "https://github.com/operable/adz.git", "61e4e5eb8631db94ec7783646f2a54c493d47c2a", [branch: "v0.15.0"]},
+%{"adz": {:git, "https://github.com/operable/adz.git", "61e4e5eb8631db94ec7783646f2a54c493d47c2a", [tag: "0.15.0"]},
   "bamboo": {:hex, :bamboo, "0.7.0", "2722e395a396dfedc12d300c900f65b216f7d7bf9d430c5dd0235690997878b7", [:mix], [{:httpoison, "~> 0.9", [hex: :httpoison, optional: false]}, {:plug, "~> 1.0", [hex: :plug, optional: false]}, {:poison, ">= 1.5.0", [hex: :poison, optional: false]}]},
   "bamboo_smtp": {:hex, :bamboo_smtp, "1.2.0", "d0bad70890910a3c7f58ab600d7a3fe6ce9637746dbb968b0610412c544375c4", [:mix], [{:bamboo, "~> 0.7.0", [hex: :bamboo, optional: false]}, {:gen_smtp, "~> 0.11.0", [hex: :gen_smtp, optional: false]}]},
   "bunt": {:hex, :bunt, "0.1.6", "5d95a6882f73f3b9969fdfd1953798046664e6f77ec4e486e6fafc7caad97c6f", [:mix], []},
   "certifi": {:hex, :certifi, "0.4.0", "a7966efb868b179023618d29a407548f70c52466bf1849b9e8ebd0e34b7ea11f", [:rebar3], []},
   "comeonin": {:hex, :comeonin, "2.5.2", "bbad773af30a7632a63053014d5cfebf6df2c1ad114167b4db02f05b5c60901b", [:mix, :make, :make], []},
-  "conduit": {:git, "https://github.com/operable/conduit.git", "945beca75111f3524c52a09c13aaf3fb1aa85f35", [branch: "v0.15.0"]},
+  "conduit": {:git, "https://github.com/operable/conduit.git", "945beca75111f3524c52a09c13aaf3fb1aa85f35", [tag: "0.15.0"]},
   "connection": {:hex, :connection, "1.0.4", "a1cae72211f0eef17705aaededacac3eb30e6625b04a6117c1b2db6ace7d5976", [:mix], []},
   "cowboy": {:hex, :cowboy, "1.0.4", "a324a8df9f2316c833a470d918aaf73ae894278b8aa6226ce7a9bf699388f878", [:rebar, :make], [{:cowlib, "~> 1.0.0", [hex: :cowlib, optional: false]}, {:ranch, "~> 1.0", [hex: :ranch, optional: false]}]},
   "cowlib": {:hex, :cowlib, "1.0.2", "9d769a1d062c9c3ac753096f868ca121e2730b9a377de23dec0f7e08b1df84ee", [:make], []},
@@ -30,8 +30,8 @@
   "getopt": {:git, "https://github.com/jcomellas/getopt.git", "3b2751dc198d1099ae2da7a98192444fcbe42285", [branch: "master"]},
   "goldrush": {:hex, :goldrush, "0.1.7", "349a351d17c71c2fdaa18a6c2697562abe136fec945f147b381f0cf313160228", [:rebar3], []},
   "gproc": {:hex, :gproc, "0.5.0", "2df2d886f8f8a7b81a4b04aa17972b5965bbc5bf0100ea6d8e8ac6a0e7389afe", [:rebar], []},
-  "greenbar": {:git, "https://github.com/operable/greenbar.git", "ce0324e2bdfb66a674fb9d6132b179a6248f70d0", [branch: "v0.15.0"]},
-  "greenbar_markdown": {:git, "https://github.com/operable/greenbar_markdown.git", "6968446764ace4694069e95c5ad416a1b84c6179", []},
+  "greenbar": {:git, "https://github.com/operable/greenbar.git", "b12a5ff00a991c980ee2408f261fed30e8bbd1a7", [tag: "0.15.0"]},
+  "greenbar_markdown": {:git, "https://github.com/operable/greenbar_markdown.git", "be7f8525e1edff508f74af591ce63c66247a9217", [tag: "0.15.0"]},
   "hackney": {:hex, :hackney, "1.6.1", "ddd22d42db2b50e6a155439c8811b8f6df61a4395de10509714ad2751c6da817", [:rebar3], [{:certifi, "0.4.0", [hex: :certifi, optional: false]}, {:idna, "1.2.0", [hex: :idna, optional: false]}, {:metrics, "1.0.1", [hex: :metrics, optional: false]}, {:mimerl, "1.0.2", [hex: :mimerl, optional: false]}, {:ssl_verify_fun, "1.1.0", [hex: :ssl_verify_fun, optional: false]}]},
   "hoedown": {:git, "https://github.com/hoedown/hoedown.git", "980b9c549b4348d50b683ecee6abee470b98acda", [branch: "master"]},
   "html_entities": {:hex, :html_entities, "0.3.0", "2f278ffc69c3f0cbd5996628fef37cf922fa715f3e04b9f38924c8adced3f25a", [:mix], []},
@@ -55,16 +55,16 @@
   "phoenix_html": {:hex, :phoenix_html, "2.6.2", "944a5e581b0d899e4f4c838a69503ebd05300fe35ba228a74439e6253e10e0c0", [:mix], [{:plug, "~> 1.0", [hex: :plug, optional: false]}]},
   "phoenix_live_reload": {:hex, :phoenix_live_reload, "1.0.5", "829218c4152ba1e9848e2bf8e161fcde6b4ec679a516259442561d21fde68d0b", [:mix], [{:fs, "~> 0.9.1", [hex: :fs, optional: false]}, {:phoenix, "~> 1.0 or ~> 1.2-rc", [hex: :phoenix, optional: false]}]},
   "phoenix_pubsub": {:hex, :phoenix_pubsub, "1.0.0", "c31af4be22afeeebfaf246592778c8c840e5a1ddc7ca87610c41ccfb160c2c57", [:mix], []},
-  "piper": {:git, "https://github.com/operable/piper.git", "d1cd5841f0f884969acb3f5236c4afdf8e9af731", []},
+  "piper": {:git, "https://github.com/operable/piper.git", "1c66edc1952c19ff117614e0e2e4417d8403e55f", [tag: "0.15.0"]},
   "plug": {:hex, :plug, "1.2.0", "496bef96634a49d7803ab2671482f0c5ce9ce0b7b9bc25bc0ae8e09859dd2004", [:mix], [{:cowboy, "~> 1.0", [hex: :cowboy, optional: true]}, {:mime, "~> 1.0", [hex: :mime, optional: false]}]},
   "poison": {:hex, :poison, "2.2.0", "4763b69a8a77bd77d26f477d196428b741261a761257ff1cf92753a0d4d24a63", [:mix], []},
   "poolboy": {:hex, :poolboy, "1.5.1", "6b46163901cfd0a1b43d692657ed9d7e599853b3b21b95ae5ae0a777cf9b6ca8", [:rebar], []},
   "postgrex": {:hex, :postgrex, "0.11.2", "139755c1359d3c5c6d6e8b1ea72556d39e2746f61c6ddfb442813c91f53487e8", [:mix], [{:connection, "~> 1.0", [hex: :connection, optional: false]}, {:db_connection, "~> 1.0-rc", [hex: :db_connection, optional: false]}, {:decimal, "~> 1.0", [hex: :decimal, optional: false]}]},
-  "probe": {:git, "https://github.com/operable/probe.git", "9a289935ddf835f40044c39bbad8f443011fc3df", [branch: "v0.15.0"]},
+  "probe": {:git, "https://github.com/operable/probe.git", "9a289935ddf835f40044c39bbad8f443011fc3df", [tag: "0.15.0"]},
   "ranch": {:hex, :ranch, "1.2.1", "a6fb992c10f2187b46ffd17ce398ddf8a54f691b81768f9ef5f461ea7e28c762", [:make], []},
   "romeo": {:git, "https://github.com/operable/romeo.git", "65106b94f134a12791ec63fa284b0ce5e9358538", [branch: "iq-bodies"]},
   "slack": {:git, "https://github.com/operable/Elixir-Slack.git", "a0dae7d46a10f9d7e7924a1c8fe5cef17b7cfb82", [branch: "allow-attachments"]},
-  "spanner": {:git, "https://github.com/operable/spanner.git", "666749aac25df21800ba3fd188875cacfdece7a8", [branch: "v0.15.0"]},
+  "spanner": {:git, "https://github.com/operable/spanner.git", "233d9db9496aca9aa6966f7bca4553ffc5d4d5ca", [tag: "0.15.0"]},
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.0", "edee20847c42e379bf91261db474ffbe373f8acb56e9079acb6038d4e0bf414f", [:rebar, :make], []},
   "table_rex": {:hex, :table_rex, "0.8.3", "1c68dfc6886d6f118f5047b0449d6402ae0ac5709064789e578c2f4659f4064b", [:mix], []},
   "uuid": {:hex, :uuid, "1.1.3", "06ca38801a1a95b751701ca40716bb97ddf76dfe7e26da0eec7dba636740d57a", [:mix], []},