diff --git a/jsoncmd.go b/jsoncmd.go
index 0dc83c2f..5a199465 100644
--- a/jsoncmd.go
+++ b/jsoncmd.go
@@ -2182,6 +2182,9 @@ type TemplateRequest struct {
 	SigOpLimit interface{} `json:"sigoplimit,omitempty"`
 	SizeLimit  interface{} `json:"sizelimit,omitempty"`
 	MaxVersion uint32      `json:"maxversion,omitempty"`
+
+	// Basic pool extension from BIP 0023.
+	Target string `json:"target,omitempty"`
 }
 
 // isFloatInt64 returns whether the passed float64 is a whole number that safely
diff --git a/jsonresults.go b/jsonresults.go
index 1d0fd08e..b230c89c 100644
--- a/jsonresults.go
+++ b/jsonresults.go
@@ -109,6 +109,15 @@ type GetBlockTemplateResult struct {
 	LongPollID  string `json:"longpollid,omitempty"`
 	LongPollURI string `json:"longpolluri,omitempty"`
 	SubmitOld   *bool  `json:"submitold,omitempty"`
+
+	// Basic pool extension from BIP 0023.
+	Target  string `json:"target,omitempty"`
+	Expires int64  `json:"expires,omitempty"`
+
+	// Mutations from BIP 0023.
+	MinTime    int64    `json:"mintime,omitempty"`
+	Mutable    []string `json:"mutable,omitempty"`
+	NonceRange string   `json:"noncerange,omitempty"`
 }
 
 // GetNetworkInfoResult models the data returned from the getnetworkinfo command.