diff --git a/vendor/github.com/Shopify/sarama/config.go b/vendor/github.com/Shopify/sarama/config.go
index e2e6513..43e739c 100644
--- a/vendor/github.com/Shopify/sarama/config.go
+++ b/vendor/github.com/Shopify/sarama/config.go
@@ -21,6 +21,13 @@
 type Config struct {
 	// Admin is the namespace for ClusterAdmin properties used by the administrative Kafka client.
 	Admin struct {
+		Retry struct {
+			// The total number of times to retry sending (retriable) admin requests (default 5).
+			// Similar to the `retries` setting of the JVM AdminClientConfig.
+			Max int
+			// Backoff time between retries of a failed request (default 100ms)
+			Backoff time.Duration
+		}
 		// The maximum duration the administrative Kafka client will wait for ClusterAdmin operations,
 		// including topics, brokers, configurations and ACLs (defaults to 3 seconds).
 		Timeout time.Duration
@@ -65,8 +72,15 @@
 			// (defaults to true). You should only set this to false if you're using
 			// a non-Kafka SASL proxy.
 			Handshake bool
-			//username and password for SASL/PLAIN  or SASL/SCRAM authentication
-			User     string
+			// AuthIdentity is an (optional) authorization identity (authzid) to
+			// use for SASL/PLAIN authentication (if different from User) when
+			// an authenticated user is permitted to act as the presented
+			// alternative user. See RFC4616 for details.
+			AuthIdentity string
+			// User is the authentication identity (authcid) to present for
+			// SASL/PLAIN or SASL/SCRAM authentication
+			User string
+			// Password for SASL/PLAIN authentication
 			Password string
 			// authz id used for SASL/SCRAM authentication
 			SCRAMAuthzID string
@@ -82,8 +96,9 @@
 			GSSAPI GSSAPIConfig
 		}
 
-		// KeepAlive specifies the keep-alive period for an active network connection.
-		// If zero, keep-alives are disabled. (default is 0: disabled).
+		// KeepAlive specifies the keep-alive period for an active network connection (defaults to 0).
+		// If zero or positive, keep-alives are enabled.
+		// If negative, keep-alives are disabled.
 		KeepAlive time.Duration
 
 		// LocalAddr is the local address to use when dialing an
@@ -214,6 +229,14 @@
 			// `Backoff` if set.
 			BackoffFunc func(retries, maxRetries int) time.Duration
 		}
+
+		// Interceptors to be called when the producer dispatcher reads the
+		// message for the first time. Interceptors allows to intercept and
+		// possible mutate the message before they are published to Kafka
+		// cluster. *ProducerMessage modified by the first interceptor's
+		// OnSend() is passed to the second interceptor OnSend(), and so on in
+		// the interceptor chain.
+		Interceptors []ProducerInterceptor
 	}
 
 	// Consumer is the namespace for configuration related to consuming messages,
@@ -312,7 +335,7 @@
 		// than this, that partition will stop fetching more messages until it
 		// can proceed again.
 		// Note that, since the Messages channel is buffered, the actual grace time is
-		// (MaxProcessingTime * ChanneBufferSize). Defaults to 100ms.
+		// (MaxProcessingTime * ChannelBufferSize). Defaults to 100ms.
 		// If a message is not written to the Messages channel between two ticks
 		// of the expiryTicker then a timeout is detected.
 		// Using a ticker instead of a timer to detect timeouts should typically
@@ -338,9 +361,21 @@
 		// offsets. This currently requires the manual use of an OffsetManager
 		// but will eventually be automated.
 		Offsets struct {
-			// How frequently to commit updated offsets. Defaults to 1s.
+			// Deprecated: CommitInterval exists for historical compatibility
+			// and should not be used. Please use Consumer.Offsets.AutoCommit
 			CommitInterval time.Duration
 
+			// AutoCommit specifies configuration for commit messages automatically.
+			AutoCommit struct {
+				// Whether or not to auto-commit updated offsets back to the broker.
+				// (default enabled).
+				Enable bool
+
+				// How frequently to commit updated offsets. Ineffective unless
+				// auto-commit is enabled (default 1s)
+				Interval time.Duration
+			}
+
 			// The initial offset to use if no offset was previously committed.
 			// Should be OffsetNewest or OffsetOldest. Defaults to OffsetNewest.
 			Initial int64
@@ -364,12 +399,24 @@
 		// 	- use `ReadUncommitted` (default) to consume and return all messages in message channel
 		//	- use `ReadCommitted` to hide messages that are part of an aborted transaction
 		IsolationLevel IsolationLevel
+
+		// Interceptors to be called just before the record is sent to the
+		// messages channel. Interceptors allows to intercept and possible
+		// mutate the message before they are returned to the client.
+		// *ConsumerMessage modified by the first interceptor's OnConsume() is
+		// passed to the second interceptor OnConsume(), and so on in the
+		// interceptor chain.
+		Interceptors []ConsumerInterceptor
 	}
 
 	// A user-provided string sent with every request to the brokers for logging,
 	// debugging, and auditing purposes. Defaults to "sarama", but you should
 	// probably set it to something specific to your application.
 	ClientID string
+	// A rack identifier for this client. This can be any string value which
+	// indicates where this client is physically located.
+	// It corresponds with the broker config 'broker.rack'
+	RackID string
 	// The number of events to buffer in internal and external channels. This
 	// permits the producer and consumer to continue processing some messages
 	// in the background while user code is working, greatly improving throughput.
@@ -394,6 +441,8 @@
 func NewConfig() *Config {
 	c := &Config{}
 
+	c.Admin.Retry.Max = 5
+	c.Admin.Retry.Backoff = 100 * time.Millisecond
 	c.Admin.Timeout = 3 * time.Second
 
 	c.Net.MaxOpenRequests = 5
@@ -423,7 +472,8 @@
 	c.Consumer.MaxWaitTime = 250 * time.Millisecond
 	c.Consumer.MaxProcessingTime = 100 * time.Millisecond
 	c.Consumer.Return.Errors = false
-	c.Consumer.Offsets.CommitInterval = 1 * time.Second
+	c.Consumer.Offsets.AutoCommit.Enable = true
+	c.Consumer.Offsets.AutoCommit.Interval = 1 * time.Second
 	c.Consumer.Offsets.Initial = OffsetNewest
 	c.Consumer.Offsets.Retry.Max = 3
 
@@ -436,7 +486,7 @@
 
 	c.ClientID = defaultClientID
 	c.ChannelBufferSize = 256
-	c.Version = MinVersion
+	c.Version = DefaultVersion
 	c.MetricRegistry = metrics.NewRegistry()
 
 	return c
@@ -504,8 +554,6 @@
 		return ConfigurationError("Net.ReadTimeout must be > 0")
 	case c.Net.WriteTimeout <= 0:
 		return ConfigurationError("Net.WriteTimeout must be > 0")
-	case c.Net.KeepAlive < 0:
-		return ConfigurationError("Net.KeepAlive must be >= 0")
 	case c.Net.SASL.Enable:
 		if c.Net.SASL.Mechanism == "" {
 			c.Net.SASL.Mechanism = SASLTypePlaintext
@@ -621,6 +669,10 @@
 		}
 	}
 
+	if c.Producer.Compression == CompressionZSTD && !c.Version.IsAtLeast(V2_1_0_0) {
+		return ConfigurationError("zstd compression requires Version >= V2_1_0_0")
+	}
+
 	if c.Producer.Idempotent {
 		if !c.Version.IsAtLeast(V0_11_0_0) {
 			return ConfigurationError("Idempotent producer requires Version >= V0_11_0_0")
@@ -650,8 +702,8 @@
 		return ConfigurationError("Consumer.MaxProcessingTime must be > 0")
 	case c.Consumer.Retry.Backoff < 0:
 		return ConfigurationError("Consumer.Retry.Backoff must be >= 0")
-	case c.Consumer.Offsets.CommitInterval <= 0:
-		return ConfigurationError("Consumer.Offsets.CommitInterval must be > 0")
+	case c.Consumer.Offsets.AutoCommit.Interval <= 0:
+		return ConfigurationError("Consumer.Offsets.AutoCommit.Interval must be > 0")
 	case c.Consumer.Offsets.Initial != OffsetOldest && c.Consumer.Offsets.Initial != OffsetNewest:
 		return ConfigurationError("Consumer.Offsets.Initial must be OffsetOldest or OffsetNewest")
 	case c.Consumer.Offsets.Retry.Max < 0:
@@ -660,6 +712,11 @@
 		return ConfigurationError("Consumer.IsolationLevel must be ReadUncommitted or ReadCommitted")
 	}
 
+	if c.Consumer.Offsets.CommitInterval != 0 {
+		Logger.Println("Deprecation warning: Consumer.Offsets.CommitInterval exists for historical compatibility" +
+			" and should not be used. Please use Consumer.Offsets.AutoCommit, the current value will be ignored")
+	}
+
 	// validate IsolationLevel
 	if c.Consumer.IsolationLevel == ReadCommitted && !c.Version.IsAtLeast(V0_11_0_0) {
 		return ConfigurationError("ReadCommitted requires Version >= V0_11_0_0")
@@ -693,3 +750,16 @@
 
 	return nil
 }
+
+func (c *Config) getDialer() proxy.Dialer {
+	if c.Net.Proxy.Enable {
+		Logger.Printf("using proxy %s", c.Net.Proxy.Dialer)
+		return c.Net.Proxy.Dialer
+	} else {
+		return &net.Dialer{
+			Timeout:   c.Net.DialTimeout,
+			KeepAlive: c.Net.KeepAlive,
+			LocalAddr: c.Net.LocalAddr,
+		}
+	}
+}