diff --git a/conandata.yml b/conandata.yml
index 84d983a..2a3dc24 100644
--- a/conandata.yml
+++ b/conandata.yml
@@ -1,3 +1,3 @@
-version: "5.11.0-alpha.0"
+version: "5.12.0-alpha.0"
 requirements:
   - "savitar/5.11.0-alpha.0"
diff --git a/conanfile.py b/conanfile.py
index 07b1104..9676ef9 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -69,7 +69,7 @@ def export_sources(self):
     def requirements(self):
         for req in self.conan_data["requirements"]:
             self.requires(req)
-        self.requires("cpython/3.12.2")
+        self.requires("cpython/3.12.7")
 
     def validate(self):
         if self.settings.compiler.cppstd:
@@ -116,7 +116,8 @@ def generate(self):
 
         # Generate the Source code from SIP
         sip = self.python_requires["sipbuildtool"].module.SipBuildTool(self)
-        sip.configure()
+        # Auto-detect sip-build from CPython dependency (cross-platform)
+        sip.configure(cpython_dependency=self.dependencies["cpython"])
         sip.build()
 
     def layout(self):