diff --git a/glide.lock b/glide.lock
index c68879d4..5dc00520 100644
--- a/glide.lock
+++ b/glide.lock
@@ -1,5 +1,5 @@
-hash: 4dcd43827539e50ac5becec4cdc24a88e9aef8a0e7c8aa6a81d17f21c78f1f45
-updated: 2017-05-17T09:07:03.948089644-07:00
+hash: 5e1d8fbc5be013d480be78b72b4cd9dff05cd113e66e26c9d191645552c9ac01
+updated: 2017-05-17T10:26:42.08303874-07:00
 imports:
 - name: bitbucket.org/zombiezen/gopdf
   version: 1c63dc69751bc45441c2ce1f56b631c55294b4d5
@@ -91,7 +91,7 @@ imports:
 - name: github.com/gyuho/dataframe
   version: 73de2c550b1177c1640f3dacbbc1af00f913fedb
 - name: github.com/gyuho/linux-inspect
-  version: dea6b03d00cdc1d7849f16195d107a2f5884e218
+  version: 459d0d77e4e21890fcedaa601a19db7b80653a86
   subpackages:
   - df
   - etc
diff --git a/glide.yaml b/glide.yaml
index 25666beb..49426b62 100644
--- a/glide.yaml
+++ b/glide.yaml
@@ -56,7 +56,7 @@ import:
 - package: github.com/gyuho/dataframe
   version: 73de2c550b1177c1640f3dacbbc1af00f913fedb
 - package: github.com/gyuho/linux-inspect
-  version: dea6b03d00cdc1d7849f16195d107a2f5884e218
+  version: 459d0d77e4e21890fcedaa601a19db7b80653a86
   subpackages:
   - df
   - etc
diff --git a/vendor/github.com/gyuho/linux-inspect/proc/net_dev.go b/vendor/github.com/gyuho/linux-inspect/proc/net_dev.go
index b5f22628..14d7aa16 100644
--- a/vendor/github.com/gyuho/linux-inspect/proc/net_dev.go
+++ b/vendor/github.com/gyuho/linux-inspect/proc/net_dev.go
@@ -176,10 +176,6 @@ func readNetDev() ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
-	err = f.Close()
-	b, berr := ioutil.ReadAll(f)
-	if err != nil {
-		berr = fmt.Errorf("%v; %v", err, berr)
-	}
-	return b, berr
+	defer f.Close()
+	return ioutil.ReadAll(f)
 }
diff --git a/vendor/github.com/gyuho/linux-inspect/proc/net_tcp.go b/vendor/github.com/gyuho/linux-inspect/proc/net_tcp.go
index 907de744..147da8de 100644
--- a/vendor/github.com/gyuho/linux-inspect/proc/net_tcp.go
+++ b/vendor/github.com/gyuho/linux-inspect/proc/net_tcp.go
@@ -204,10 +204,6 @@ func readNetTCP(pid int64, tp TransportProtocol) ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
-	err = f.Close()
-	b, berr := ioutil.ReadAll(f)
-	if err != nil {
-		berr = fmt.Errorf("%v; %v", err, berr)
-	}
-	return b, berr
+	defer f.Close()
+	return ioutil.ReadAll(f)
 }
diff --git a/vendor/github.com/gyuho/linux-inspect/proc/stat.go b/vendor/github.com/gyuho/linux-inspect/proc/stat.go
index 383385e4..9a9b4b00 100644
--- a/vendor/github.com/gyuho/linux-inspect/proc/stat.go
+++ b/vendor/github.com/gyuho/linux-inspect/proc/stat.go
@@ -33,12 +33,8 @@ func readStat(pid int64) ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
-	err = f.Close()
-	b, berr := ioutil.ReadAll(f)
-	if err != nil {
-		berr = fmt.Errorf("%v; %v", err, berr)
-	}
-	return b, berr
+	defer f.Close()
+	return ioutil.ReadAll(f)
 }
 
 func parseStat(d []byte) (s Stat, err error) {
diff --git a/vendor/github.com/gyuho/linux-inspect/proc/status.go b/vendor/github.com/gyuho/linux-inspect/proc/status.go
index 18d0f020..26317b9d 100644
--- a/vendor/github.com/gyuho/linux-inspect/proc/status.go
+++ b/vendor/github.com/gyuho/linux-inspect/proc/status.go
@@ -79,12 +79,8 @@ func readStatus(pid int64) ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
-	err = f.Close()
-	b, berr := ioutil.ReadAll(f)
-	if err != nil {
-		berr = fmt.Errorf("%v; %v", err, berr)
-	}
-	return b, berr
+	defer f.Close()
+	return ioutil.ReadAll(f)
 }
 
 func parseStatus(d []byte) (s Status, err error) {