diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7f33b67..4ae5ba2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,15 @@
 # Changelog
 
 Changelog for go-wavefront-management-api.
+
+## [2.1.0]
+
+- Dashboard object to omit chart `summarization` field when empty.
+  - Helps prevent the following API error when it is not included in the JSON body:
+      ```text
+      Cannot deserialize value of type `sunnylabs.query.SummarizationStrategy` from String \"\":  was not one of [MEAN, MEDIAN, MIN, MAX, SUM, COUNT, LAST, FIRST, ANOMALOUS]
+      ```
+
 ## [2.0.0]
 
 Breaking Change:
diff --git a/dashboard.go b/dashboard.go
index b9852f0..b2a9db3 100644
--- a/dashboard.go
+++ b/dashboard.go
@@ -135,7 +135,7 @@ type Chart struct {
 	NoDefaultEvents bool `json:"noDefaultEvents"`
 
 	// Strategy to use when aggregating metric points (LAST, AVERAGE, COUNT, etc)
-	Summarization string `json:"summarization"`
+	Summarization string `json:"summarization,omitempty"`
 
 	// Sources is an Array of Source
 	Sources []Source `json:"sources"`
diff --git a/version b/version
index 227cea2..7ec1d6d 100644
--- a/version
+++ b/version
@@ -1 +1 @@
-2.0.0
+2.1.0