Switch to SQLite 3.5.9.
diff --git a/PCbuild/pyproject.vsprops b/PCbuild/pyproject.vsprops
index 48c6915..4a9f8ec 100644
--- a/PCbuild/pyproject.vsprops
+++ b/PCbuild/pyproject.vsprops
@@ -74,7 +74,7 @@
 	/>
 	<UserMacro
 		Name="sqlite3Dir"
-		Value="$(externalsDir)\sqlite-source-3.3.4"
+		Value="$(externalsDir)\sqlite-3.5.9"
 	/>
 	<UserMacro
 		Name="bz2Dir"