diff --git a/Gopkg.lock b/Gopkg.lock
index 57986c440c..5e76a49cfd 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -267,8 +267,7 @@
     "server",
     "types"
   ]
-  revision = "f9dce537281ffba5d1e047e6729429f7e5fb90c9"
-  version = "v0.11.0-rc0"
+  revision = "c67bb414c7ee617f18d81a50f8a837318bb6d7dc"
 
 [[projects]]
   branch = "master"
@@ -461,6 +460,6 @@
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "04b888e63be8b6999da76f98c44c12a21920b12186378957d6b874270f300aaf"
+  inputs-digest = "8f9c58893f04daef93d91512e658560cf076a766fc100c8bc4f718d7abf1ea9c"
   solver-name = "gps-cdcl"
   solver-version = 1
diff --git a/Gopkg.toml b/Gopkg.toml
index d30953da59..843b3c4618 100644
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -52,9 +52,9 @@
   name = "github.com/stretchr/testify"
   version = "~1.2.1"
 
-[[constraint]]
+[[override]]
   name = "github.com/tendermint/abci"
-  version = "0.11.0-rc0"
+  revision = "c67bb414c7ee617f18d81a50f8a837318bb6d7dc"
 
 [[constraint]]
   name = "github.com/tendermint/go-crypto"
diff --git a/x/slashing/tick.go b/x/slashing/tick.go
index 8125522741..14db48b379 100644
--- a/x/slashing/tick.go
+++ b/x/slashing/tick.go
@@ -1,7 +1,6 @@
 package slashing
 
 import (
-	"bytes"
 	"encoding/binary"
 	"fmt"
 
@@ -21,8 +20,8 @@ func NewBeginBlocker(sk Keeper) sdk.BeginBlocker {
 		for _, evidence := range req.ByzantineValidators {
 			var pk crypto.PubKey
 			sk.cdc.MustUnmarshalBinary(evidence.PubKey, &pk)
-			switch {
-			case bytes.Compare(evidence.Type, []byte("doubleSign")) == 0:
+			switch evidence.Type {
+			case abci.EvidenceType_DOUBLE_SIGN:
 				sk.handleDoubleSign(ctx, evidence.Height, evidence.Time, pk)
 			default:
 				ctx.Logger().With("module", "x/slashing").Error(fmt.Sprintf("Ignored unknown evidence type: %s", string(evidence.Type)))