diff --git a/lib/core/settings.py b/lib/core/settings.py
index c38e2b1d5..90042f051 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -19,7 +19,7 @@ from lib.core.enums import OS
 from lib.core.revision import getRevisionNumber
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.0.6.30"
+VERSION = "1.0.6.31"
 REVISION = getRevisionNumber()
 STABLE = VERSION.count('.') <= 2
 VERSION_STRING = "sqlmap/%s#%s" % (VERSION, "stable" if STABLE else "dev")
diff --git a/lib/core/threads.py b/lib/core/threads.py
index 4e999b519..4e2206bc8 100644
--- a/lib/core/threads.py
+++ b/lib/core/threads.py
@@ -202,7 +202,7 @@ def runThreads(numThreads, threadFunction, cleanupFunction=None, forwardExceptio
         kb.threadException = False
 
         for lock in kb.locks.values():
-            if lock.locked_lock():
+            if lock.locked():
                 try:
                     lock.release()
                 except thread.error: