diff --git a/vendor/github.com/pierrec/lz4/.travis.yml b/vendor/github.com/pierrec/lz4/.travis.yml
index 204afe1..658910d 100644
--- a/vendor/github.com/pierrec/lz4/.travis.yml
+++ b/vendor/github.com/pierrec/lz4/.travis.yml
@@ -20,3 +20,5 @@
 script: 
  - go test -v -cpu=2
  - go test -v -cpu=2 -race
+ - go test -v -cpu=2 -tags noasm
+ - go test -v -cpu=2 -race -tags noasm
diff --git a/vendor/github.com/pierrec/lz4/block.go b/vendor/github.com/pierrec/lz4/block.go
index 07863ce..d96e0e7 100644
--- a/vendor/github.com/pierrec/lz4/block.go
+++ b/vendor/github.com/pierrec/lz4/block.go
@@ -30,75 +30,17 @@
 // The destination buffer must be sized appropriately.
 //
 // An error is returned if the source data is invalid or the destination buffer is too small.
-func UncompressBlock(src, dst []byte) (si int, err error) {
-	defer func() {
-		// It is now faster to let the runtime panic and recover on out of bound slice access
-		// than checking indices as we go along.
-		if recover() != nil {
-			err = ErrInvalidSourceShortBuffer
-		}
-	}()
+func UncompressBlock(src, dst []byte) (di int, err error) {
 	sn := len(src)
 	if sn == 0 {
 		return 0, nil
 	}
-	var di int
 
-	for {
-		// Literals and match lengths (token).
-		b := int(src[si])
-		si++
-
-		// Literals.
-		if lLen := b >> 4; lLen > 0 {
-			if lLen == 0xF {
-				for src[si] == 0xFF {
-					lLen += 0xFF
-					si++
-				}
-				lLen += int(src[si])
-				si++
-			}
-			i := si
-			si += lLen
-			di += copy(dst[di:di+si-i], src[i:si])
-
-			if si >= sn {
-				return di, nil
-			}
-		}
-
-		si++
-		_ = src[si] // Bound check elimination.
-		offset := int(src[si-1]) | int(src[si])<<8
-		si++
-
-		// Match.
-		mLen := b & 0xF
-		if mLen == 0xF {
-			for src[si] == 0xFF {
-				mLen += 0xFF
-				si++
-			}
-			mLen += int(src[si])
-			si++
-		}
-		mLen += minMatch
-
-		// Copy the match.
-		i := di - offset
-		if offset > 0 && mLen >= offset {
-			// Efficiently copy the match dst[di-offset:di] into the dst slice.
-			bytesToCopy := offset * (mLen / offset)
-			expanded := dst[i:]
-			for n := offset; n <= bytesToCopy+offset; n *= 2 {
-				copy(expanded[n:], expanded[:n])
-			}
-			di += bytesToCopy
-			mLen -= bytesToCopy
-		}
-		di += copy(dst[di:di+mLen], dst[i:i+mLen])
+	di = decodeBlock(dst, src)
+	if di < 0 {
+		return 0, ErrInvalidSourceShortBuffer
 	}
+	return di, nil
 }
 
 // CompressBlock compresses the source buffer into the destination one.