diff --git a/CHANGELOG.md b/CHANGELOG.md
index e53b2f2..1aef40d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 # next release
 - ...
 
+# 0.8.1
+- Add retry mechanism for instances launch/termination
+- Make `Launcher::launch!` transaction-like, which reclaims all partially launched instances in the event of non-intermittent error
+- Display better error message with reason and failed instances
+- Take converge lock during initial converge
+
 # 0.8.0
 - Support for VPC [Brenden](https://github.com/brndnmtthws)
 - Support relative paths and home alias in `Launcher#try_file` [Patrick Viet](https://github.com/patrickviet)
diff --git a/Gemfile.lock b/Gemfile.lock
index a193177..595b644 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    stemcell (0.8.0)
+    stemcell (0.8.1)
       aws-creds (~> 0.2.2)
       aws-sdk (~> 1.9)
       chef (>= 11.4.0)
@@ -15,7 +15,9 @@ GEM
   specs:
     aws-creds (0.2.3)
       trollop (~> 2.0)
-    aws-sdk (1.51.0)
+    aws-sdk (1.62.0)
+      aws-sdk-v1 (= 1.62.0)
+    aws-sdk-v1 (1.62.0)
       json (~> 1.4)
       nokogiri (>= 1.4.4)
     chef (11.14.6)
@@ -46,18 +48,18 @@ GEM
     diff-lcs (1.2.5)
     docile (1.1.5)
     erubis (2.7.0)
-    ffi (1.9.3)
-    ffi-yajl (1.0.2)
+    ffi (1.9.6)
+    ffi-yajl (1.3.1)
       ffi (~> 1.5)
-      libyajl2 (~> 1.0)
+      libyajl2 (~> 1.2)
     hashie (2.1.2)
     highline (1.6.21)
     ipaddress (0.8.0)
     json (1.7.7)
-    libyajl2 (1.0.1)
+    libyajl2 (1.2.0)
     method_source (0.8.2)
     mime-types (1.25.1)
-    mini_portile (0.6.0)
+    mini_portile (0.6.2)
     mixlib-authentication (1.3.0)
       mixlib-log
     mixlib-cli (1.5.0)
@@ -65,14 +67,14 @@ GEM
     mixlib-log (1.6.0)
     mixlib-shellout (1.4.0)
     multi_json (1.10.1)
-    net-ssh (2.9.1)
+    net-ssh (2.9.2)
     net-ssh-gateway (1.2.0)
       net-ssh (>= 2.6.5)
     net-ssh-multi (1.2.0)
       net-ssh (>= 2.6.5)
       net-ssh-gateway (>= 1.2.0)
-    nokogiri (1.6.3.1)
-      mini_portile (= 0.6.0)
+    nokogiri (1.6.6.2)
+      mini_portile (~> 0.6.0)
     ohai (7.2.4)
       ffi (~> 1.9)
       ffi-yajl (~> 1.0)
@@ -89,7 +91,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    rack (1.5.2)
+    rack (1.6.0)
     rake (10.3.2)
     rest-client (1.6.7)
       mime-types (>= 1.16)
@@ -110,7 +112,7 @@ GEM
     simplecov-html (0.8.0)
     slop (3.6.0)
     systemu (2.6.4)
-    trollop (2.0)
+    trollop (2.1.1)
     wmi-lite (1.0.0)
 
 PLATFORMS
diff --git a/lib/stemcell/version.rb b/lib/stemcell/version.rb
index 1aeda62..9153d69 100644
--- a/lib/stemcell/version.rb
+++ b/lib/stemcell/version.rb
@@ -1,3 +1,3 @@
 module Stemcell
-  VERSION = "0.8.0"
+  VERSION = "0.8.1"
 end