diff --git a/CHANGES.md b/CHANGES.md
index 03bfc09..33ab56c 100755
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,11 @@
 # Change Log
 
+# 0.12.7
+
+- fix `attachments` parameter type in sensor.
+- update `jinja` dependency to 2.10.1+
+- use upstream `slackclient` package
+
 # 0.12.6
 
 - Fix `text` parameter in `chat.update` to be `required: false`, same as `chat.postMessage`. `text` only required when `attachments` is `None` 
diff --git a/pack.yaml b/pack.yaml
index fddc9be..e8d35c3 100755
--- a/pack.yaml
+++ b/pack.yaml
@@ -7,7 +7,7 @@ keywords:
   - chat
   - messaging
   - instant messaging
-version: 0.12.6
+version: 0.12.7
 python_versions:
   - "2"
   - "3"
diff --git a/requirements.txt b/requirements.txt
index 0be4a39..8878468 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,5 +2,5 @@ requests>=2.5.0,<3.0
 websocket-client==0.44.0
 beautifulsoup4==4.6.0
 lxml==3.8.0
-jinja2==2.9.6
--e git+https://github.com/Kami/python-slackclient.git@stackstorm_patched#egg=slackclient
+jinja2>=2.10.1
+slackclient==1.3.1
diff --git a/sensors/slack_sensor.yaml b/sensors/slack_sensor.yaml
index d6a910d..7ad1a45 100755
--- a/sensors/slack_sensor.yaml
+++ b/sensors/slack_sensor.yaml
@@ -21,4 +21,4 @@
           timestamp_raw:
             type: "string"
           attachments:
-            type: "object"
+            type: "array"