diff --git a/lib/controller/checks.py b/lib/controller/checks.py
index 5aa1de157..2119233ef 100644
--- a/lib/controller/checks.py
+++ b/lib/controller/checks.py
@@ -1137,7 +1137,8 @@ def heuristicCheckSqlInjection(place, parameter):
 
     paramType = conf.method if conf.method not in (None, HTTPMETHOD.GET, HTTPMETHOD.POST) else place
 
-    if value.lower() in (page or "").lower():
+    # Reference: https://bugs.python.org/issue18183
+    if value.upper() in (page or "").upper():
         infoMsg = "heuristic (XSS) test shows that %sparameter '%s' might be vulnerable to cross-site scripting (XSS) attacks" % ("%s " % paramType if paramType != parameter else "", parameter)
         logger.info(infoMsg)
 
diff --git a/lib/core/settings.py b/lib/core/settings.py
index 160a52fa1..dcba54e37 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -18,7 +18,7 @@ from lib.core.enums import OS
 from thirdparty.six import unichr as _unichr
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.4.12.42"
+VERSION = "1.4.12.43"
 TYPE = "dev" if VERSION.count('.') > 2 and VERSION.split('.')[-1] != '0' else "stable"
 TYPE_COLORS = {"dev": 33, "stable": 90, "pip": 34}
 VERSION_STRING = "sqlmap/%s#%s" % ('.'.join(VERSION.split('.')[:-1]) if VERSION.count('.') > 2 and VERSION.split('.')[-1] == '0' else VERSION, TYPE)