diff --git a/vendor/github.com/Shopify/sarama/incremental_alter_configs_request.go b/vendor/github.com/Shopify/sarama/incremental_alter_configs_request.go
new file mode 100644
index 0000000..c4d05a9
--- /dev/null
+++ b/vendor/github.com/Shopify/sarama/incremental_alter_configs_request.go
@@ -0,0 +1,173 @@
+package sarama
+
+type IncrementalAlterConfigsOperation int8
+
+const (
+	IncrementalAlterConfigsOperationSet IncrementalAlterConfigsOperation = iota
+	IncrementalAlterConfigsOperationDelete
+	IncrementalAlterConfigsOperationAppend
+	IncrementalAlterConfigsOperationSubtract
+)
+
+// IncrementalAlterConfigsRequest is an incremental alter config request type
+type IncrementalAlterConfigsRequest struct {
+	Resources    []*IncrementalAlterConfigsResource
+	ValidateOnly bool
+}
+
+type IncrementalAlterConfigsResource struct {
+	Type          ConfigResourceType
+	Name          string
+	ConfigEntries map[string]IncrementalAlterConfigsEntry
+}
+
+type IncrementalAlterConfigsEntry struct {
+	Operation IncrementalAlterConfigsOperation
+	Value     *string
+}
+
+func (a *IncrementalAlterConfigsRequest) encode(pe packetEncoder) error {
+	if err := pe.putArrayLength(len(a.Resources)); err != nil {
+		return err
+	}
+
+	for _, r := range a.Resources {
+		if err := r.encode(pe); err != nil {
+			return err
+		}
+	}
+
+	pe.putBool(a.ValidateOnly)
+	return nil
+}
+
+func (a *IncrementalAlterConfigsRequest) decode(pd packetDecoder, version int16) error {
+	resourceCount, err := pd.getArrayLength()
+	if err != nil {
+		return err
+	}
+
+	a.Resources = make([]*IncrementalAlterConfigsResource, resourceCount)
+	for i := range a.Resources {
+		r := &IncrementalAlterConfigsResource{}
+		err = r.decode(pd, version)
+		if err != nil {
+			return err
+		}
+		a.Resources[i] = r
+	}
+
+	validateOnly, err := pd.getBool()
+	if err != nil {
+		return err
+	}
+
+	a.ValidateOnly = validateOnly
+
+	return nil
+}
+
+func (a *IncrementalAlterConfigsResource) encode(pe packetEncoder) error {
+	pe.putInt8(int8(a.Type))
+
+	if err := pe.putString(a.Name); err != nil {
+		return err
+	}
+
+	if err := pe.putArrayLength(len(a.ConfigEntries)); err != nil {
+		return err
+	}
+
+	for name, e := range a.ConfigEntries {
+		if err := pe.putString(name); err != nil {
+			return err
+		}
+
+		if err := e.encode(pe); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (a *IncrementalAlterConfigsResource) decode(pd packetDecoder, version int16) error {
+	t, err := pd.getInt8()
+	if err != nil {
+		return err
+	}
+	a.Type = ConfigResourceType(t)
+
+	name, err := pd.getString()
+	if err != nil {
+		return err
+	}
+	a.Name = name
+
+	n, err := pd.getArrayLength()
+	if err != nil {
+		return err
+	}
+
+	if n > 0 {
+		a.ConfigEntries = make(map[string]IncrementalAlterConfigsEntry, n)
+		for i := 0; i < n; i++ {
+			name, err := pd.getString()
+			if err != nil {
+				return err
+			}
+
+			var v IncrementalAlterConfigsEntry
+
+			if err := v.decode(pd, version); err != nil {
+				return err
+			}
+
+			a.ConfigEntries[name] = v
+		}
+	}
+	return err
+}
+
+func (a *IncrementalAlterConfigsEntry) encode(pe packetEncoder) error {
+	pe.putInt8(int8(a.Operation))
+
+	if err := pe.putNullableString(a.Value); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (a *IncrementalAlterConfigsEntry) decode(pd packetDecoder, version int16) error {
+	t, err := pd.getInt8()
+	if err != nil {
+		return err
+	}
+	a.Operation = IncrementalAlterConfigsOperation(t)
+
+	s, err := pd.getNullableString()
+	if err != nil {
+		return err
+	}
+
+	a.Value = s
+
+	return nil
+}
+
+func (a *IncrementalAlterConfigsRequest) key() int16 {
+	return 44
+}
+
+func (a *IncrementalAlterConfigsRequest) version() int16 {
+	return 0
+}
+
+func (a *IncrementalAlterConfigsRequest) headerVersion() int16 {
+	return 1
+}
+
+func (a *IncrementalAlterConfigsRequest) requiredVersion() KafkaVersion {
+	return V2_3_0_0
+}