diff --git a/build.py b/build.py
index 9bf99449..49d2d98a 100755
--- a/build.py
+++ b/build.py
@@ -1290,7 +1290,7 @@ def cmd_sip(options, args):
             requires = ["sip >=6.6.2, <7"]
             build-backend = "sipbuild.api"
 
-            [tool.sip.metadata]
+            [project]
             name = "{base}"
 
             [tool.sip.bindings.{base}]
diff --git a/buildtools/config.py b/buildtools/config.py
index cf9f2ba1..34418dae 100644
--- a/buildtools/config.py
+++ b/buildtools/config.py
@@ -85,7 +85,7 @@ class Configuration(object):
     PKGDIR = 'wx'
     # The name of the top-level package
 
-    SIP_ABI = '12.8'
+    SIP_ABI = '12.9'
     SIP_TRACE = False
 
     # ---------------------------------------------------------------
diff --git a/docs/sphinx/itemToModuleMap.json b/docs/sphinx/itemToModuleMap.json
index e428098f..f6dafe91 100644
--- a/docs/sphinx/itemToModuleMap.json
+++ b/docs/sphinx/itemToModuleMap.json
@@ -874,6 +874,7 @@
 "DataViewBitmapRenderer":"wx.dataview.",
 "DataViewCellMode":"wx.dataview.",
 "DataViewCellRenderState":"wx.dataview.",
+"DataViewCheckIconText":"wx.dataview.",
 "DataViewCheckIconTextRenderer":"wx.dataview.",
 "DataViewChoiceRenderer":"wx.dataview.",
 "DataViewColumn":"wx.dataview.",
diff --git a/etg/defs.py b/etg/defs.py
index 4445cf93..04c5e08e 100644
--- a/etg/defs.py
+++ b/etg/defs.py
@@ -75,7 +75,7 @@ def run():
     module.insertItemAfter(td, etgtools.TypedefDef(type='wchar_t', name='wxChar'))
     module.insertItemAfter(td, etgtools.TypedefDef(type='wxInt64', name='time_t'))
     module.insertItemAfter(td, etgtools.TypedefDef(type='long long', name='wxFileOffset'))
-    module.insertItemAfter(td, etgtools.TypedefDef(type='SIP_SSIZE_T', name='ssize_t'))
+    module.insertItemAfter(td, etgtools.TypedefDef(type='Py_ssize_t', name='ssize_t'))
     module.insertItemAfter(td, etgtools.TypedefDef(type='unsigned char', name='byte', pyInt=True))
     module.insertItemAfter(td, etgtools.TypedefDef(type='unsigned long', name='ulong'))
 
diff --git a/etg/graphics.py b/etg/graphics.py
index cd4efff6..30bf98ce 100644
--- a/etg/graphics.py
+++ b/etg/graphics.py
@@ -286,7 +286,7 @@ def run():
 
     #---------------------------------------------
     c = module.find('wxGraphicsGradientStops')
-    c.addCppMethod('SIP_SSIZE_T', '__len__', '()', body="return (SIP_SSIZE_T)self->GetCount();")
+    c.addCppMethod('Py_ssize_t', '__len__', '()', body="return (Py_ssize_t)self->GetCount();")
     c.addCppMethod('wxGraphicsGradientStop*', '__getitem__', '(ulong n)',
                    pyArgsString='(n)',
                    body="return new wxGraphicsGradientStop(self->Item(n));",
diff --git a/etgtools/tweaker_tools.py b/etgtools/tweaker_tools.py
index 5b76888e..1b63c717 100644
--- a/etgtools/tweaker_tools.py
+++ b/etgtools/tweaker_tools.py
@@ -958,7 +958,7 @@ class {ListClass}
         {TypeDef}
     %End
 public:
-    SIP_SSIZE_T __len__();
+    Py_ssize_t __len__();
     %MethodCode
         sipRes = sipCpp->size();
     %End
@@ -1129,7 +1129,7 @@ def wxArrayWrapperTemplate(ArrayClass, ItemClass, module, itemIsPtr=False, getIt
 class {ArrayClass}
 {{
 public:
-    SIP_SSIZE_T __len__();
+    Py_ssize_t __len__();
     %MethodCode
         sipRes = sipCpp->GetCount();
     %End
@@ -1183,7 +1183,7 @@ def wxArrayPtrWrapperTemplate(ArrayClass, ItemClass, module):
 class {ArrayClass}
 {{
 public:
-    SIP_SSIZE_T __len__();
+    Py_ssize_t __len__();
     %MethodCode
         sipRes = sipCpp->GetCount();
     %End
diff --git a/requirements/devel.txt b/requirements/devel.txt
index ab0f39e1..44fa0244 100644
--- a/requirements/devel.txt
+++ b/requirements/devel.txt
@@ -3,7 +3,7 @@
 appdirs
 setuptools < 45 ; python_version < '3.0'
 setuptools ; python_version >= '3.0'
-sip == 6.8.2
+sip == 6.8.3
 
 wheel
 twine
diff --git a/sphinxtools/constants.py b/sphinxtools/constants.py
index 68bc8477..7ee45bfe 100644
--- a/sphinxtools/constants.py
+++ b/sphinxtools/constants.py
@@ -223,7 +223,7 @@ class Enumeration(object):
         return self.reverseLookup[value]
 
 
-CONSTANT_RE = re.compile('^([\w\s,]+)=', re.M)
+CONSTANT_RE = re.compile(r'^([\w\s,]+)=', re.M)
 
 EXCLUDED_ATTRS = ['__builtins__', '__doc__', '__name__', '__file__', '__path__',
                   '__module__', '__all__', '__cached__', '__loader__', '__package__',