diff --git a/detools/version.py b/detools/version.py
index e3d0b7b..cac7112 100644
--- a/detools/version.py
+++ b/detools/version.py
@@ -1 +1 @@
-__version__ = '0.33.0'
+__version__ = '0.34.0'
diff --git a/requirements.txt b/requirements.txt
index c379528..bc83bd5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 humanfriendly
 bitstruct
 pyelftools
-zstandard==0.11.1
-lz4==2.1.10
+zstandard
+lz4
 heatshrink2
diff --git a/setup.py b/setup.py
index d5b6466..2ca734b 100755
--- a/setup.py
+++ b/setup.py
@@ -29,8 +29,8 @@ def find_version():
           'humanfriendly',
           'bitstruct',
           'pyelftools',
-          'zstandard==0.11.1',
-          'lz4==2.1.10',
+          'zstandard',
+          'lz4',
           'heatshrink2'
       ],
       ext_modules=[
diff --git a/tests/files/micropython/esp8266-20180511-v1.9.4--20190125-v1.10-lz4.patch b/tests/files/micropython/esp8266-20180511-v1.9.4--20190125-v1.10-lz4.patch
index 6a0d277..d061df8 100644
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diff --git a/tests/files/micropython/esp8266-20180511-v1.9.4--20190125-v1.10-zstd.patch b/tests/files/micropython/esp8266-20180511-v1.9.4--20190125-v1.10-zstd.patch
index fcbb1e5..1f96eb1 100644
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diff --git a/tests/files/shell/zstd.patch b/tests/files/shell/zstd.patch
index ac22f22..82f23c4 100644
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