diff --git a/crmsh/bootstrap.py b/crmsh/bootstrap.py
index 01f8f3986..6b90e3386 100644
--- a/crmsh/bootstrap.py
+++ b/crmsh/bootstrap.py
@@ -2011,7 +2011,7 @@ def adjust_priority_fencing_delay(is_2node_wo_qdevice):
     out = sh.cluster_shell().get_stdout_or_raise_error("crm configure show related:stonith")
     if not out:
         return
-    pcmk_delay_max_v_list = re.findall("pcmk_delay_max=(\w+)", out)
+    pcmk_delay_max_v_list = re.findall(r"pcmk_delay_max=(\w+)", out)
     if pcmk_delay_max_v_list:
         max_value = max([int(utils.crm_msec(v)/1000) for v in pcmk_delay_max_v_list])
     if pcmk_delay_max_v_list and is_2node_wo_qdevice:
diff --git a/crmsh/log_patterns.py b/crmsh/log_patterns.py
index ac62f1436..4e95427db 100644
--- a/crmsh/log_patterns.py
+++ b/crmsh/log_patterns.py
@@ -34,7 +34,7 @@
             "lrmd.*WARN: .* %% .*timed out$",
             "crmd.*LRM operation %%_(?:start|stop|promote|demote|migrate)_.*confirmed=true",
             "crmd.*LRM operation %%_.*Timed Out",
-            "[(]%%[)]\[",
+            "[(]%%[)]\\[",
         ),
         (  # detail 1
             "lrmd.*%% (?:probe|notify)",
@@ -92,7 +92,7 @@
 
             "crmd.*LRM operation %%_(?:start|stop|promote|demote|migrate)_.*confirmed=true",
             "crmd.*LRM operation %%_.*Timed Out",
-            "[(]%%[)]\[",
+            "[(]%%[)]\\[",
         ),
         (  # detail 1
             "crmd.*Initiating.*%%_(?:monitor_0|notify)",
@@ -151,7 +151,7 @@
 
             "pacemaker-controld.*Result of .* operation for .* on .*: .*confirmed=true",
             "pacemaker-controld.*Result of .* operation for .* on .*: Timed Out",
-            "[(]%%[)]\[",
+            "[(]%%[)]\\[",
         ),
         (  # detail 1
             "pacemaker-controld.*Initiating.*%%_(?:monitor_0|notify)",
diff --git a/crmsh/report/collect.py b/crmsh/report/collect.py
index c3c51d655..dfbbca3c6 100644
--- a/crmsh/report/collect.py
+++ b/crmsh/report/collect.py
@@ -152,7 +152,7 @@ def collect_dlm_info(context: core.Context) -> None:
         name_list = []
         out_string = "##### NOTICE - Lockspace overview:\n"
         out_string += utils.get_cmd_output("dlm_tool ls")
-        name_list = re.findall("^name\s*(.*)$", out_string, re.MULTILINE)
+        name_list = re.findall(r"^name\s*(.*)$", out_string, re.MULTILINE)
 
         for name in name_list:
             out_string += f"\n\n## NOTICE - Lockspace {name}\n"
diff --git a/crmsh/report/utils.py b/crmsh/report/utils.py
index 6c439126d..cc27118c6 100644
--- a/crmsh/report/utils.py
+++ b/crmsh/report/utils.py
@@ -204,7 +204,7 @@ def get_distro_info() -> str:
     elif shutil.which("lsb_release"):
         logger.debug2("Using lsb_release to get distribution info")
         out = sh.LocalShell().get_stdout_or_raise_error("lsb_release -d")
-        res = re.search("Description:\s+(.*)", out)
+        res = re.search(r"Description:\s+(.*)", out)
     return res.group(1) if res else "Unknown"
 
 
@@ -548,7 +548,7 @@ def _parse_sensitive_set(self) -> None:
         patt_set = set(self.context.sensitive_regex_list)
         # from /etc/crm/crm.conf
         if config.report.sanitize_rule:
-            patt_set |= set(re.split('\s*\|\s*|\s+', config.report.sanitize_rule.strip('|')))
+            patt_set |= set(re.split(r'\s*\|\s*|\s+', config.report.sanitize_rule.strip('|')))
         if patt_set:
             self.context.sanitize = True
         # Not set from -p option and crm.conf, use default
diff --git a/crmsh/sbd.py b/crmsh/sbd.py
index cc0df1d19..c005126c4 100644
--- a/crmsh/sbd.py
+++ b/crmsh/sbd.py
@@ -92,7 +92,7 @@ def get_sbd_msgwait(dev):
         """
         out = sh.cluster_shell().get_stdout_or_raise_error("sbd -d {} dump".format(dev))
         # Format like "Timeout (msgwait)  : 30"
-        res = re.search("\(msgwait\)\s+:\s+(\d+)", out)
+        res = re.search(r"\(msgwait\)\s+:\s+(\d+)", out)
         if not res:
             raise ValueError("Cannot get sbd msgwait for {}".format(dev))
         return int(res.group(1))
@@ -293,7 +293,7 @@ def _get_device_uuid(dev, node=None):
         Get UUID for specific device and node
         """
         out = sh.cluster_shell().get_stdout_or_raise_error("sbd -d {} dump".format(dev), node)
-        res = re.search("UUID\s*:\s*(.*)\n", out)
+        res = re.search(r"UUID\s*:\s*(.*)\n", out)
         if not res:
             raise ValueError("Cannot find sbd device UUID for {}".format(dev))
         return res.group(1)
diff --git a/crmsh/ui_configure.py b/crmsh/ui_configure.py
index 3f1a1f1ab..a0b02fd63 100644
--- a/crmsh/ui_configure.py
+++ b/crmsh/ui_configure.py
@@ -579,7 +579,7 @@ def do_show(self, context, *args):
             #   1. "pattern1 pattern2 pattern3"
             #   2. "pattern1|pattern2|pattern3"
             # regrex here also filter out possible spaces
-            osargs = re.split('\s*\|\s*|\s+', config.core.obscure_pattern.strip('|'))
+            osargs = re.split(r'\s*\|\s*|\s+', config.core.obscure_pattern.strip('|'))
         args = [arg for arg in args if not arg.startswith('obscure:')]
         cib_factory.ensure_cib_updated()
         with obscure(osargs):
diff --git a/crmsh/ui_utils.py b/crmsh/ui_utils.py
index 33f7c865c..9cdcfaffd 100644
--- a/crmsh/ui_utils.py
+++ b/crmsh/ui_utils.py
@@ -49,7 +49,7 @@ def manage_attr(cmd, attr_ext_commands, rsc, subcmd, attr, value):
     '''
     try:
         attr_cmd = _get_attr_cmd(attr_ext_commands, subcmd)
-        if re.search("\w+=\w+", attr):
+        if re.search(r"\w+=\w+", attr):
             attr, value = attr.split('=')
         return _dispatch_attr_cmd(cmd, attr_cmd, rsc, subcmd, attr, value)
     except ValueError as msg:
diff --git a/crmsh/utils.py b/crmsh/utils.py
index 1c8ffb4b0..fc9affe9f 100644
--- a/crmsh/utils.py
+++ b/crmsh/utils.py
@@ -2035,7 +2035,7 @@ def detect_azure():
     system_manufacturer = shell.get_stdout_or_raise_error("dmidecode -s system-manufacturer")
     chassis_asset_tag = shell.get_stdout_or_raise_error("dmidecode -s chassis-asset-tag")
     if "microsoft corporation" in system_manufacturer.lower() or \
-            ''.join([chr(int(n)) for n in re.findall("\d\d", chassis_asset_tag)]) == "MSFT AZURE VM":
+            ''.join([chr(int(n)) for n in re.findall(r"\d\d", chassis_asset_tag)]) == "MSFT AZURE VM":
         # To detect azure we also need to make an API request
         result = _cloud_metadata_request(
             "http://169.254.169.254/metadata/instance/network/interface/0/ipv4/ipAddress/0/privateIpAddress?api-version=2017-08-01&format=text",
@@ -2493,7 +2493,7 @@ def get_quorum_votes_dict(remote=None):
     Return a dictionary which contain expect votes and total votes
     """
     out = sh.cluster_shell().get_stdout_or_raise_error("corosync-quorumtool -s", remote, success_exit_status={0, 2})
-    return dict(re.findall("(Expected|Total) votes:\s+(\d+)", out))
+    return dict(re.findall(r"(Expected|Total) votes:\s+(\d+)", out))
 
 
 def check_all_nodes_reachable():
@@ -2501,7 +2501,7 @@ def check_all_nodes_reachable():
     Check if all cluster nodes are reachable
     """
     out = sh.cluster_shell().get_stdout_or_raise_error("crm_node -l")
-    for node in re.findall("\d+ (.*) \w+", out):
+    for node in re.findall(r"\d+ (.*) \w+", out):
         node_reachable_check(node)
 
 
@@ -2582,7 +2582,7 @@ def get_all_vg_name():
     Get all available VGs
     """
     out = sh.cluster_shell().get_stdout_or_raise_error("vgdisplay")
-    return re.findall("VG Name\s+(.*)", out)
+    return re.findall(r"VG Name\s+(.*)", out)
 
 
 def get_pe_number(vg_id):
@@ -2590,7 +2590,7 @@ def get_pe_number(vg_id):
     Get pe number
     """
     output = sh.cluster_shell().get_stdout_or_raise_error("vgdisplay {}".format(vg_id))
-    res = re.search("Total PE\s+(\d+)", output)
+    res = re.search(r"Total PE\s+(\d+)", output)
     if not res:
         raise ValueError("Cannot find PE on VG({})".format(vg_id))
     return int(res.group(1))
@@ -2678,7 +2678,7 @@ def get_qdevice_sync_timeout():
     Get qdevice sync_timeout
     """
     out = sh.cluster_shell().get_stdout_or_raise_error("crm corosync status qdevice")
-    res = re.search("Sync HB interval:\s+(\d+)ms", out)
+    res = re.search(r"Sync HB interval:\s+(\d+)ms", out)
     if not res:
         raise ValueError("Cannot find qdevice sync timeout")
     return int(int(res.group(1))/1000)
@@ -2713,7 +2713,7 @@ def get_dlm_option_dict(peer=None):
     Get dlm config option dictionary
     """
     out = sh.cluster_shell().get_stdout_or_raise_error("dlm_tool dump_config", peer)
-    return dict(re.findall("(\w+)=(\w+)", out))
+    return dict(re.findall(r"(\w+)=(\w+)", out))
 
 
 def set_dlm_option(peer=None, **kargs):
@@ -2749,7 +2749,7 @@ def is_resource_running(ra_type, peer=None):
     Check if the RA running
     """
     out = sh.cluster_shell().get_stdout_or_raise_error("crm_mon -1rR", peer)
-    patt = f"\({ra_type}\):\s*Started"
+    patt = f"\\({ra_type}\\):\\s*Started"
     return re.search(patt, out) is not None
 
 
@@ -2853,9 +2853,9 @@ def get_systemd_timeout_start_in_sec(time_res):
     Get the TimeoutStartUSec value in second unit
     The origin format was like: 1min 30s
     """
-    res_seconds = re.search("(\d+)s", time_res)
+    res_seconds = re.search(r"(\d+)s", time_res)
     start_timeout = int(res_seconds.group(1)) if res_seconds else 0
-    res_min = re.search("(\d+)min", time_res)
+    res_min = re.search(r"(\d+)min", time_res)
     start_timeout += 60 * int(res_min.group(1)) if res_min else 0
     return start_timeout
 
diff --git a/crmsh/watchdog.py b/crmsh/watchdog.py
index 6d0d2cff4..5af77a2f1 100644
--- a/crmsh/watchdog.py
+++ b/crmsh/watchdog.py
@@ -10,7 +10,7 @@ class Watchdog(object):
     Class to find valid watchdog device name
     """
     QUERY_CMD = "sudo sbd query-watchdog"
-    DEVICE_FIND_REGREX = "\[[0-9]+\] (/dev/.*)\n.*\nDriver: (.*)"
+    DEVICE_FIND_REGREX = "\\[[0-9]+\\] (/dev/.*)\n.*\nDriver: (.*)"
 
     def __init__(self, _input=None, remote_user=None, peer_host=None):
         """
@@ -61,7 +61,7 @@ def _driver_is_loaded(driver):
         Check if driver was already loaded
         """
         _, out, _ = ShellUtils().get_stdout_stderr("lsmod")
-        return re.search("\n{}\s+".format(driver), out)
+        return re.search("\n{}\\s+".format(driver), out)
 
     def _set_watchdog_info(self):
         """
diff --git a/test/unittests/test_utils.py b/test/unittests/test_utils.py
index 360c18b07..ac24e08ce 100644
--- a/test/unittests/test_utils.py
+++ b/test/unittests/test_utils.py
@@ -596,7 +596,7 @@ class TestInterfacesInfo(unittest.TestCase):
     Unitary tests for class utils.InterfacesInfo
     """
 
-    network_output_error = """1: lo    inet 127.0.0.1/8 scope host lo\       valid_lft forever preferred_lft forever
+    network_output_error = """1: lo    inet 127.0.0.1/8 scope host lo\\       valid_lft forever preferred_lft forever
 2: enp1s0    inet 192.168.122.241/24 brd 192.168.122.255 scope global enp1s0
 61: tun0    inet 10.163.45.46 peer 10.163.45.45/32 scope global tun0"""
 
@@ -633,7 +633,7 @@ def tearDownClass(cls):
 
     @mock.patch('crmsh.sh.ShellUtils.get_stdout_stderr')
     def test_get_interfaces_info_no_address(self, mock_run):
-        only_lo = "1: lo    inet 127.0.0.1/8 scope host lo\       valid_lft forever preferred_lft forever"
+        only_lo = "1: lo    inet 127.0.0.1/8 scope host lo\\       valid_lft forever preferred_lft forever"
         mock_run.return_value = (0, only_lo, None)
         with self.assertRaises(ValueError) as err:
             self.interfaces_info.get_interfaces_info()