diff --git a/pyproject.toml b/pyproject.toml
index 6d9f9ec..74e1449 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,8 @@ dependencies = [
     "colorama",
     "rich",
     "cryptography",
-    "cryptolayer-module-interface @ git+https://github.com/igmunv/cryptolayer-module-interface.git"
+    "cryptolayer-module-interface @ git+https://github.com/igmunv/cryptolayer-module-interface.git",
+    "zstandard"
 ]
 
 [tool.setuptools.package-dir]
diff --git a/src/levels/presentation.py b/src/levels/presentation.py
index 8b0d401..81d9f67 100644
--- a/src/levels/presentation.py
+++ b/src/levels/presentation.py
@@ -1,7 +1,7 @@
 import os
 import time
 
-import lzma
+import zstandard as zstd
 
 from cryptography.hazmat.primitives.ciphers.aead import AESGCM
 
@@ -23,7 +23,8 @@ def send_without_encrypt(self, data):
         self.logger.info(f"size: {len(data)}")
 
         # сжатие
-        data = lzma.compress(data)
+        cctx = zstd.ZstdCompressor(level=22)
+        data = cctx.compress(data)
 
         self.LOWER_LEVEL.send(data)
 
@@ -45,9 +46,10 @@ def rworker(self, data):
                 return
 
         try:
-            data = lzma.decompress(data)
+            dctx = zstd.ZstdDecompressor()
+            data = dctx.decompress(data)
         except Exception as e:
-            self.logger.error(f"lzma decompress error: {e}")
+            self.logger.error(f"zstd decompress error: {e}")
             return
 
         self.UPPER_LEVEL.receive(data)
@@ -57,7 +59,8 @@ def rworker(self, data):
     def sworker(self, data):
 
         # сжатие
-        data = lzma.compress(data)
+        cctx = zstd.ZstdCompressor(level=22)
+        data = cctx.compress(data)
 
         # шифрование
         if self.DO_ENCRYPT: