diff --git a/CHANGELOG.md b/CHANGELOG.md
index 824da6ec..ed61780c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 # Changelog
 
 ## In Development
+* Pin etcd to latest 3 version per new st2 coordination requirement (#61)
 
 ## v0.10.0
 * Bump versions of all dependencies (#50)
diff --git a/templates/configmaps_st2-conf.yaml b/templates/configmaps_st2-conf.yaml
index 6a3266f6..144be6a5 100644
--- a/templates/configmaps_st2-conf.yaml
+++ b/templates/configmaps_st2-conf.yaml
@@ -21,6 +21,7 @@ data:
     [auth]
     api_url = http://{{ .Release.Name }}-st2api{{ template "enterpriseSuffix" . }}:9101/
     [coordination]
+    # TODO: Use 'etcd3+http' driver for tooz, per https://github.com/StackStorm/st2/pull/4608
     url = etcd://{{ .Release.Name }}-etcd:2379
     [messaging]
     # TODO: RabbitMQ HQ connection string needs templating based on number of nodes
diff --git a/values.yaml b/values.yaml
index 0580cbab..fc0db1ae 100644
--- a/values.yaml
+++ b/values.yaml
@@ -388,6 +388,9 @@ rabbitmq-ha:
 ## https://github.com/helm/charts/blob/master/incubator/etcd/values.yaml
 ##
 etcd:
+  image:
+    # At least etcd 'v3.0' is required by StackStorm
+    tag: "3.3.10"
   resources: {}
 
 ##