diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 662631cd..02cabc68 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -20,7 +20,7 @@ jobs:
     - name: Build wheels
       uses: RalfG/python-wheels-manylinux-build@v0.3.4-manylinux1_x86_64
       with:
-        python-versions: 'cp27-cp27mu cp36-cp36m cp37-cp37m cp38-cp38'
+        python-versions: 'cp27-cp27mu cp36-cp36m cp37-cp37m cp38-cp38 cp39-cp39'
         build-requirements: 'cython'
     - name: Clean linux_x86_64.whl
       run: rm dist/*-linux_x86_64.whl
diff --git a/.github/workflows/python.yml b/.github/workflows/python.yml
index 9550a9e2..1b1473e9 100644
--- a/.github/workflows/python.yml
+++ b/.github/workflows/python.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        pyver: ["2.7", "3.6", "3.7", "3.8"]
+        pyver: ["2.7", "3.6", "3.7", "3.8", "3.9"]
         compiler: ["gcc", "clang"]
         build_type: ["Debug", "Release"]
 
@@ -42,7 +42,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        pyver: ["2.7", "3.6", "3.7", "3.8"]
+        pyver: ["2.7", "3.6", "3.7", "3.8", "3.9"]
 
     steps:
     - uses: actions/checkout@v2
diff --git a/libmc/__init__.py b/libmc/__init__.py
index c5b801db..b5ac549e 100644
--- a/libmc/__init__.py
+++ b/libmc/__init__.py
@@ -27,11 +27,11 @@
     __file__ as _libmc_so_file
 )
 
-__VERSION__ = "1.4.1"
-__version__ = "v1.4.1-10-ga2080d1"
+__VERSION__ = "1.4.2"
+__version__ = "v1.4.2"
 __author__ = "mckelvin"
 __email__ = "mckelvin@users.noreply.github.com"
-__date__ = "Thu May 20 18:37:41 2021 +0800"
+__date__ = "Thu May 20 18:44:42 2021 +0800"
 
 
 class Client(PyClient):
diff --git a/setup.py b/setup.py
index 4cf4ce33..c9807b95 100644
--- a/setup.py
+++ b/setup.py
@@ -108,10 +108,10 @@ def run_tests(self):
         "Programming Language :: Python",
         "Programming Language :: Python :: 2.7",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: Implementation :: CPython",
         "Development Status :: 5 - Production/Stable",
         "Operating System :: POSIX :: Linux",
diff --git a/src/version.go b/src/version.go
index 9a84e392..28acf41f 100644
--- a/src/version.go
+++ b/src/version.go
@@ -1,9 +1,9 @@
 package golibmc
 
-const _Version = "v1.4.1-10-ga2080d1"
+const _Version = "v1.4.2"
 const _Author = "mckelvin"
 const _Email = "mckelvin@users.noreply.github.com"
-const _Date = "Thu May 20 18:37:41 2021 +0800"
+const _Date = "Thu May 20 18:44:42 2021 +0800"
 
 // Version of the package
 const Version = _Version