diff --git a/lib/core/settings.py b/lib/core/settings.py
index 6f4c34201..936c23c7d 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -19,7 +19,7 @@ from lib.core.enums import DBMS_DIRECTORY_NAME
 from lib.core.enums import OS
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.2.5.3"
+VERSION = "1.2.5.4"
 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)
diff --git a/lib/techniques/union/test.py b/lib/techniques/union/test.py
index 963222bef..0ca8f6569 100644
--- a/lib/techniques/union/test.py
+++ b/lib/techniques/union/test.py
@@ -117,9 +117,9 @@ def _findUnionCharCount(comment, place, parameter, value, prefix, suffix, where=
 
         if not isNullValue(kb.uChar):
             for regex in (kb.uChar.strip("'"), r'>\s*%s\s*<' % kb.uChar.strip("'")):
-                contains = tuple((count, re.search(regex, _ or "", re.IGNORECASE) is not None) for count, _ in pages.items())
-                if len(filter(lambda _: _[1], contains)) == 1:
-                    retVal = filter(lambda _: _[1], contains)[0][0]
+                contains = [count for count, content in pages.items() if re.search(regex, content or "", re.IGNORECASE) is not None]
+                if len(contains) == 1:
+                    retVal = contains[0]
                     break
 
         if not retVal:
diff --git a/txt/checksum.md5 b/txt/checksum.md5
index def96febf..b275a3784 100644
--- a/txt/checksum.md5
+++ b/txt/checksum.md5
@@ -47,7 +47,7 @@ c9a56e58984420a5abb7a3f7aadc196d  lib/core/optiondict.py
 0c3eef46bdbf87e29a3f95f90240d192  lib/core/replication.py
 a7db43859b61569b601b97f187dd31c5  lib/core/revision.py
 fcb74fcc9577523524659ec49e2e964b  lib/core/session.py
-dd60aab11bccebf9ae75ebedb36a2368  lib/core/settings.py
+8fc5eef70dd6099c61c26c48767c4ef5  lib/core/settings.py
 0dfc2ed40adf72e302291f6ecd4406f6  lib/core/shell.py
 a7edc9250d13af36ac0108f259859c19  lib/core/subprocessng.py
 6306284edcccc185b2df085438572b0d  lib/core/target.py
@@ -97,7 +97,7 @@ bad83c6386adf345fbc982bdafbe3b93  lib/techniques/dns/use.py
 f999f2e88dea9ac8831eb2f468478b5f  lib/techniques/error/use.py
 1e5532ede194ac9c083891c2f02bca93  lib/techniques/__init__.py
 1e5532ede194ac9c083891c2f02bca93  lib/techniques/union/__init__.py
-72b73cfb962cdbe9107e25df1bc43ffb  lib/techniques/union/test.py
+2075952d327723169de8fb7ac667c9c1  lib/techniques/union/test.py
 11ecf2effbe9f40b361843d546c3c521  lib/techniques/union/use.py
 8d99c07416df40350ff8836d9d79ebb5  lib/utils/api.py
 37dfb641358669f62c2acedff241348b  lib/utils/brute.py