diff --git a/agent_based/cisco_asa_connections.py b/agent_based/cisco_asa_connections.py
index 99c0818205f1d630a87407ff975f5ee49185655c..1b9ea76c13929f51fd6185e84fc3e9ef40c11a24 100644
--- a/agent_based/cisco_asa_connections.py
+++ b/agent_based/cisco_asa_connections.py
@@ -19,7 +19,9 @@
 # 2020-02-24: added support for Cisco Firepower Threat Defense
 # 2020-04-28: changed item from Cisco ASA connections to Firewall connections --> more clear, with cisco_asa_conn check
 # 2021-03-24: rewrite for CMK 2.0 Check API, added lower levels
+# 2023-06-07: fixed IndexError (list index out of range) in parse function
 #
+
 # sample snmp walk
 #
 # .1.3.6.1.4.1.9.9.147.1.2.2.2.1.5.40.6 = Gauge32: 4987
@@ -30,7 +32,7 @@
 #
 #
 
-from typing import List, NamedTuple
+from typing import NamedTuple, Optional
 
 from cmk.base.plugins.agent_based.agent_based_api.v1.type_defs import (
     DiscoveryResult,
@@ -54,11 +56,16 @@ class CiscoAsaFwConnections(NamedTuple):
     peak: int
 
 
-# [[['1102', '2290']]]
-def parse_cisco_asa_connections(string_table: List[StringTable]) -> CiscoAsaFwConnections:
+# [['1102', '2290']]
+def parse_cisco_asa_connections(string_table: StringTable) -> Optional[CiscoAsaFwConnections]:
+    try:
+        current, peak = string_table[0]
+    except (IndexError, ValueError):
+        return
+
     return CiscoAsaFwConnections(
-        current=int(string_table[0][0][0]),
-        peak=int(string_table[0][0][1])
+        current=int(current),
+        peak=int(peak)
     )
 
 
@@ -87,15 +94,13 @@ def check_cisco_asa_connections(params, section: CiscoAsaFwConnections) -> Check
 register.snmp_section(
     name='cisco_asa_connections',
     parse_function=parse_cisco_asa_connections,
-    fetch=[
-        SNMPTree(
-            base='.1.3.6.1.4.1.9.9.147.1.2.2.2.1.5.40',  # CISCO-FIREWALL-MIB::cfwConnectionStatValue.protoIp
-            oids=[
-                '6',  # currentInUse
-                '7',  # protoIp.high
-            ]
-        ),
-    ],
+    fetch=SNMPTree(
+        base='.1.3.6.1.4.1.9.9.147.1.2.2.2.1.5.40',  # CISCO-FIREWALL-MIB::cfwConnectionStatValue.protoIp
+        oids=[
+            '6',  # currentInUse
+            '7',  # protoIp.high
+        ]
+    ),
     detect=any_of(
         startswith('.1.3.6.1.2.1.1.1.0', 'cisco adaptive security'),
         startswith('.1.3.6.1.2.1.1.1.0', 'cisco firepower threat defense'),
diff --git a/checks/cisco_asa_connections b/checks/cisco_asa_connections
new file mode 100644
index 0000000000000000000000000000000000000000..58a364eca45416c28d08a9487cba8cf2518fa7f6
--- /dev/null
+++ b/checks/cisco_asa_connections
@@ -0,0 +1,8 @@
+#
+# Author: thl-cmk[at]outlook[dot]com
+# URL   : https://thl-cmk.hopto.org
+# Date  : 2023-06-07
+#
+# dummy for new cisco_asa_connections plugin
+# ~/local/lib/check_mk/base/plugins/cisco_asa_connections.py
+#
\ No newline at end of file
diff --git a/cisco_asa_connections-200607.v.0.5.mkp b/cisco_asa_connections-200607.v.0.5.mkp
new file mode 100644
index 0000000000000000000000000000000000000000..6b4a80b38c88e671dbd57bcf5982770678309bce
Binary files /dev/null and b/cisco_asa_connections-200607.v.0.5.mkp differ
diff --git a/cisco_asa_connections.mkp b/cisco_asa_connections.mkp
index 8cb57656887ea44600d4bb1a8a9b8b25dda5875c..6b4a80b38c88e671dbd57bcf5982770678309bce 100644
Binary files a/cisco_asa_connections.mkp and b/cisco_asa_connections.mkp differ
diff --git a/packages/cisco_asa_connections b/packages/cisco_asa_connections
index 7f1dd3c0334e863845de9731fe574f41da585554..068fa9428140a1781d525c70e893fb652416ffb0 100644
--- a/packages/cisco_asa_connections
+++ b/packages/cisco_asa_connections
@@ -10,12 +10,12 @@
                 'connections\n',
  'download_url': 'https://thl-cmk.hopto.org',
  'files': {'agent_based': ['cisco_asa_connections.py'],
+           'checks': ['cisco_asa_connections'],
            'web': ['plugins/metrics/cisco_asa_connections.py',
                    'plugins/wato/cisco_fw_connections.py']},
  'name': 'cisco_asa_connections',
- 'num_files': 3,
  'title': 'Monitor Cisco ASA connections',
- 'version': '20210324.v.0.4',
- 'version.min_required': '2.0.0',
- 'version.packaged': '2.0.0p1',
+ 'version': '200607.v.0.5',
+ 'version.min_required': '2.0.0b1',
+ 'version.packaged': '2.1.0p21',
  'version.usable_until': None}
\ No newline at end of file