diff --git a/Sources/Compression/WSCompression.swift b/Sources/Compression/WSCompression.swift
index c68f6576..21295841 100644
--- a/Sources/Compression/WSCompression.swift
+++ b/Sources/Compression/WSCompression.swift
@@ -147,10 +147,12 @@ class Decompressor {
         strm.avail_in = CUnsignedInt(count)
 
         repeat {
-            strm.next_out = UnsafeMutablePointer<UInt8>(&buffer)
-            strm.avail_out = CUnsignedInt(buffer.count)
+            buffer.withUnsafeMutableBytes { (bufferPtr) in
+                strm.next_out = bufferPtr.bindMemory(to: UInt8.self).baseAddress
+                strm.avail_out = CUnsignedInt(bufferPtr.count)
 
-            res = inflate(&strm, 0)
+                res = inflate(&strm, 0)
+            }
 
             let byteCount = buffer.count - Int(strm.avail_out)
             out.append(buffer, count: byteCount)
@@ -209,10 +211,12 @@ class Compressor {
             strm.avail_in = CUnsignedInt(data.count)
 
             repeat {
-                strm.next_out = UnsafeMutablePointer<UInt8>(&buffer)
-                strm.avail_out = CUnsignedInt(buffer.count)
+                buffer.withUnsafeMutableBytes { (bufferPtr) in
+                    strm.next_out = bufferPtr.bindMemory(to: UInt8.self).baseAddress
+                    strm.avail_out = CUnsignedInt(bufferPtr.count)
 
-                res = deflate(&strm, Z_SYNC_FLUSH)
+                    res = deflate(&strm, Z_SYNC_FLUSH)
+                }
 
                 let byteCount = buffer.count - Int(strm.avail_out)
                 compressed.append(buffer, count: byteCount)