diff --git a/data/txt/sha256sums.txt b/data/txt/sha256sums.txt
index 004a4fb1f..02a452946 100644
--- a/data/txt/sha256sums.txt
+++ b/data/txt/sha256sums.txt
@@ -188,7 +188,7 @@ c03dc585f89642cfd81b087ac2723e3e1bb3bfa8c60e6f5fe58ef3b0113ebfe6  lib/core/data.
 48797d6c34dd9bb8a53f7f3794c85f4288d82a9a1d6be7fcf317d388cb20d4b3  lib/core/replication.py
 0b8c38a01bb01f843d94a6c5f2075ee47520d0c4aa799cecea9c3e2c5a4a23a6  lib/core/revision.py
 888daba83fd4a34e9503fe21f01fef4cc730e5cde871b1d40e15d4cbc847d56c  lib/core/session.py
-6baf277ffd8df726878ea82d46674d38db3b727fff6c9dfe477d58b6448e7cfd  lib/core/settings.py
+624bd04b80de377d905c6867c40d28d5110f08e5a7e77573549913626cb79025  lib/core/settings.py
 cd5a66deee8963ba8e7e9af3dd36eb5e8127d4d68698811c29e789655f507f82  lib/core/shell.py
 bcb5d8090d5e3e0ef2a586ba09ba80eef0c6d51feb0f611ed25299fbb254f725  lib/core/subprocessng.py
 70ea3768f1b3062b22d20644df41c86238157ec80dd43da40545c620714273c6  lib/core/target.py
@@ -500,7 +500,7 @@ cf26bc8006519bd25ce06d347f72770cd75b61575cf65e5812274e8ab9392eb4  tamper/apostro
 11ad15d66c43f32f5d0a39052e5f623a4752ad4fb275d642f2e4cd841ff82b41  tamper/base64encode.py
 1b55b7c59c623411c8cf328fff9e7de96a2dfc48ef4e5455325bfd41aebbbc13  tamper/between.py
 6e72b92662185a56847cca235106bc354bd6a10e3e89a135b9ea8fa09cd8eb34  tamper/binary.py
-9e1852d61d439181c42cb6d28656e9464a1dd5991269f000fb47e107f2f6f4f1  tamper/bluecoat.py
+f833cfbb53e6849ed1b3b554ec1c973f85e6d41ebd62f94f8e0dcf0ba5da2f49  tamper/bluecoat.py
 69c7eb987dec666da227ee1024c31b89ad324a3f7cab287ada6dade7f51c8a36  tamper/chardoubleencode.py
 c7892bff56b2b85dfdf9f24c783c569edac57a3fd5a254cf4554987a374206c9  tamper/charencode.py
 72c163ff0b4f79bdec07fbea3e75a2eaa8304881d35287eab8f03c25d06e99e0  tamper/charunicodeencode.py
diff --git a/lib/core/settings.py b/lib/core/settings.py
index eb8dfbcaa..3401294d6 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -20,7 +20,7 @@ from lib.core.enums import OS
 from thirdparty import six
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.10.6.90"
+VERSION = "1.10.6.91"
 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/tamper/bluecoat.py b/tamper/bluecoat.py
index 3ca4b8d4a..7bfd30bd5 100644
--- a/tamper/bluecoat.py
+++ b/tamper/bluecoat.py
@@ -44,7 +44,7 @@ def tamper(payload, **kwargs):
 
     if payload:
         retVal = re.sub(r"\b(?P<word>[A-Z_]+)(?=[^\w(]|\Z)", process, retVal)
-        retVal = re.sub(r"\s*=\s*", " LIKE ", retVal)
+        retVal = re.sub(r"\s*(?<![<>!=])=(?!=)\s*", " LIKE ", retVal)  # Note: skipping compound operators (e.g. >=, <=, !=)
         retVal = retVal.replace("%09 ", "%09")
 
     return retVal