diff --git a/cibuildwheel/macos.py b/cibuildwheel/macos.py
index 09960011..c190981a 100644
--- a/cibuildwheel/macos.py
+++ b/cibuildwheel/macos.py
@@ -38,7 +38,7 @@ def get_python_configurations(build_selector: BuildSelector) -> List[PythonConfi
         PythonConfiguration(version='3.5', identifier='cp35-macosx_x86_64', url='https://www.python.org/ftp/python/3.5.4/python-3.5.4-macosx10.6.pkg'),
         PythonConfiguration(version='3.6', identifier='cp36-macosx_x86_64', url='https://www.python.org/ftp/python/3.6.8/python-3.6.8-macosx10.9.pkg'),
         PythonConfiguration(version='3.7', identifier='cp37-macosx_x86_64', url='https://www.python.org/ftp/python/3.7.9/python-3.7.9-macosx10.9.pkg'),
-        PythonConfiguration(version='3.8', identifier='cp38-macosx_x86_64', url='https://www.python.org/ftp/python/3.8.6/python-3.8.6-macosx10.9.pkg'),
+        PythonConfiguration(version='3.8', identifier='cp38-macosx_x86_64', url='https://www.python.org/ftp/python/3.8.7/python-3.8.7-macosx10.9.pkg'),
         PythonConfiguration(version='3.9', identifier='cp39-macosx_x86_64', url='https://www.python.org/ftp/python/3.9.1/python-3.9.1-macosx10.9.pkg'),
         # PyPy
         PythonConfiguration(version='2.7', identifier='pp27-macosx_x86_64', url='https://downloads.python.org/pypy/pypy2.7-v7.3.3-osx64.tar.bz2'),
diff --git a/cibuildwheel/resources/constraints-python36.txt b/cibuildwheel/resources/constraints-python36.txt
index ac010630..4e782508 100644
--- a/cibuildwheel/resources/constraints-python36.txt
+++ b/cibuildwheel/resources/constraints-python36.txt
@@ -18,4 +18,4 @@ zipp==3.4.0               # via importlib-metadata, importlib-resources
 
 # The following packages are considered to be unsafe in a requirements file:
 pip==20.3.3               # via -r cibuildwheel/resources/constraints.in
-setuptools==51.0.0        # via -r cibuildwheel/resources/constraints.in
+setuptools==51.1.0        # via -r cibuildwheel/resources/constraints.in
diff --git a/cibuildwheel/resources/constraints-python37.txt b/cibuildwheel/resources/constraints-python37.txt
index f3634ba9..9e7b421b 100644
--- a/cibuildwheel/resources/constraints-python37.txt
+++ b/cibuildwheel/resources/constraints-python37.txt
@@ -17,4 +17,4 @@ zipp==3.4.0               # via importlib-metadata
 
 # The following packages are considered to be unsafe in a requirements file:
 pip==20.3.3               # via -r cibuildwheel/resources/constraints.in
-setuptools==51.0.0        # via -r cibuildwheel/resources/constraints.in
+setuptools==51.1.0        # via -r cibuildwheel/resources/constraints.in
diff --git a/cibuildwheel/resources/constraints-python38.txt b/cibuildwheel/resources/constraints-python38.txt
index e5e08eb8..40bcd207 100644
--- a/cibuildwheel/resources/constraints-python38.txt
+++ b/cibuildwheel/resources/constraints-python38.txt
@@ -14,4 +14,4 @@ wheel==0.36.2             # via -r cibuildwheel/resources/constraints.in, deloca
 
 # The following packages are considered to be unsafe in a requirements file:
 pip==20.3.3               # via -r cibuildwheel/resources/constraints.in
-setuptools==51.0.0        # via -r cibuildwheel/resources/constraints.in
+setuptools==51.1.0        # via -r cibuildwheel/resources/constraints.in
diff --git a/cibuildwheel/resources/constraints-python39.txt b/cibuildwheel/resources/constraints-python39.txt
index e5e08eb8..40bcd207 100644
--- a/cibuildwheel/resources/constraints-python39.txt
+++ b/cibuildwheel/resources/constraints-python39.txt
@@ -14,4 +14,4 @@ wheel==0.36.2             # via -r cibuildwheel/resources/constraints.in, deloca
 
 # The following packages are considered to be unsafe in a requirements file:
 pip==20.3.3               # via -r cibuildwheel/resources/constraints.in
-setuptools==51.0.0        # via -r cibuildwheel/resources/constraints.in
+setuptools==51.1.0        # via -r cibuildwheel/resources/constraints.in
diff --git a/cibuildwheel/resources/constraints.txt b/cibuildwheel/resources/constraints.txt
index e5e08eb8..40bcd207 100644
--- a/cibuildwheel/resources/constraints.txt
+++ b/cibuildwheel/resources/constraints.txt
@@ -14,4 +14,4 @@ wheel==0.36.2             # via -r cibuildwheel/resources/constraints.in, deloca
 
 # The following packages are considered to be unsafe in a requirements file:
 pip==20.3.3               # via -r cibuildwheel/resources/constraints.in
-setuptools==51.0.0        # via -r cibuildwheel/resources/constraints.in
+setuptools==51.1.0        # via -r cibuildwheel/resources/constraints.in
diff --git a/cibuildwheel/windows.py b/cibuildwheel/windows.py
index eb809ea2..11dbdcec 100644
--- a/cibuildwheel/windows.py
+++ b/cibuildwheel/windows.py
@@ -58,8 +58,8 @@ def get_python_configurations(build_selector: BuildSelector) -> List[PythonConfi
         PythonConfiguration(version='3.6.8', arch='64', identifier='cp36-win_amd64', url=None),
         PythonConfiguration(version='3.7.9', arch='32', identifier='cp37-win32', url=None),
         PythonConfiguration(version='3.7.9', arch='64', identifier='cp37-win_amd64', url=None),
-        PythonConfiguration(version='3.8.6', arch='32', identifier='cp38-win32', url=None),
-        PythonConfiguration(version='3.8.6', arch='64', identifier='cp38-win_amd64', url=None),
+        PythonConfiguration(version='3.8.7', arch='32', identifier='cp38-win32', url=None),
+        PythonConfiguration(version='3.8.7', arch='64', identifier='cp38-win_amd64', url=None),
         PythonConfiguration(version='3.9.1', arch='32', identifier='cp39-win32', url=None),
         PythonConfiguration(version='3.9.1', arch='64', identifier='cp39-win_amd64', url=None),
         # PyPy