diff --git a/vendor.conf b/vendor.conf
index ec8aefd8f32c2..f71a8757c8116 100644
--- a/vendor.conf
+++ b/vendor.conf
@@ -67,7 +67,7 @@ github.com/moby/ipvs                                4566ccea0e08d68e9614c3e7a64a
 github.com/BurntSushi/toml                          3012a1dbe2e4bd1391d42b32f0577cb7bbc7f005 # v0.3.1
 github.com/samuel/go-zookeeper                      d0e0d8e11f318e000a8cc434616d69e329edc374
 github.com/deckarep/golang-set                      ef32fa3046d9f249d399f98ebaf9be944430fd1d
-github.com/coreos/etcd                              2c834459e1aab78a5d5219c7dfe42335fc4b617a # v3.3.25
+github.com/coreos/etcd                              973882f697a8db3d59815bf132c6c506434334bd # v3.3.27
 github.com/coreos/go-semver                         8ab6407b697782a06568d4b7f1db25550ec2e4c6 # v0.2.0
 github.com/hashicorp/consul                         9a9cc9341bb487651a0399e3fc5e1e8a42e62dd9 # v0.5.2
 github.com/miekg/dns                                6c0c4e6581f8e173cc562c8b3363ab984e4ae071 # v1.1.27
diff --git a/vendor/github.com/coreos/etcd/pkg/fileutil/lock_linux.go b/vendor/github.com/coreos/etcd/pkg/fileutil/lock_linux.go
index 939fea6238181..004d35fa23b48 100644
--- a/vendor/github.com/coreos/etcd/pkg/fileutil/lock_linux.go
+++ b/vendor/github.com/coreos/etcd/pkg/fileutil/lock_linux.go
@@ -29,7 +29,7 @@ import (
 //
 // constants from /usr/include/bits/fcntl-linux.h
 const (
-	F_OFD_GETLK  = 37
+	F_OFD_GETLK  = 36
 	F_OFD_SETLK  = 37
 	F_OFD_SETLKW = 38
 )
diff --git a/vendor/github.com/coreos/etcd/version/version.go b/vendor/github.com/coreos/etcd/version/version.go
index aa96ffad492fa..2fd79cd8eb191 100644
--- a/vendor/github.com/coreos/etcd/version/version.go
+++ b/vendor/github.com/coreos/etcd/version/version.go
@@ -26,7 +26,7 @@ import (
 var (
 	// MinClusterVersion is the min cluster version this etcd binary is compatible with.
 	MinClusterVersion = "3.0.0"
-	Version           = "3.3.25"
+	Version           = "3.3.27"
 	APIVersion        = "unknown"
 
 	// Git SHA Value will be set during build