diff --git a/requirements.txt b/requirements.txt
index a54de5dd0dd038dffa005647903ab4e9af40ccb0..7cdd5e0c6ba9c23a2f8fbf7816c6fbb139b4915a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -69,8 +69,6 @@ yappi==1.3.3
 ssh2-python==0.26.0; extra == "activator"
 # Classifier
 bitarray==2.3.4; extra == "classifier"
-# esmre==0.5.2; extra == "classifier"
-https://github.com/wharris/esmre/archive/refs/heads/main.zip
 # Cache-Redis
 hiredis==1.1.0; extra == "cache-redis"
 redis==3.5.3; extra == "cache-redis"
diff --git a/services/classifier/xrulelookup.py b/services/classifier/xrulelookup.py
index f9c8be50386f26bfef6b524156020516828e034b..42d27abe7d32a5b6afcbefa6ff9fa53a8cccc13a 100644
--- a/services/classifier/xrulelookup.py
+++ b/services/classifier/xrulelookup.py
@@ -13,7 +13,13 @@ import cachetools
 import sre_parse
 
 # Third-party modules
-import esmre as esm
+# Manually setup esmre==1.0.0
+try:
+    import esmre as esm
+except (ModuleNotFoundError, ImportError):
+    raise NotImplementedError(
+        "XRuleLookup needed ESMRE library for worked. Please, install it from pip"
+    )
 import bitarray
 
 # NOC modules
diff --git a/tests/test_py_module.py b/tests/test_py_module.py
index a264e0dfa17785aa0332c43700fba0f0469444e5..a19a1b7a21acf8089a5353f5eba0992ecbdff808 100644
--- a/tests/test_py_module.py
+++ b/tests/test_py_module.py
@@ -87,7 +87,7 @@ def test_import(module):
     try:
         m = __import__(module, {}, {}, "*")
         assert m
-    except ImportError as e:
+    except (ImportError, ModuleNotFoundError, NotImplementedError) as e:
         if _allow_xfail(module):
             pytest.xfail(str(e))
         else:
@@ -100,7 +100,7 @@ def test_module_empty_docstrings(module):
         m = __import__(module, {}, {}, "*")
         if m.__doc__ is not None and not m.__doc__.strip():
             pytest.xfail("Module-level docstring must not be empty")
-    except ImportError as e:
+    except (ImportError, ModuleNotFoundError, NotImplementedError) as e:
         if _allow_xfail(module):
             pytest.xfail(str(e))
         else: