diff --git a/README.md b/README.md
index da67522..de1b2a2 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ This is a generic plugin for Nagios which checks json values from a given HTTP e
 
 Requirements:
 
-* Python 3.6+
+* Python 3.8+
 
 ### Nagios
 
diff --git a/check_http_json.py b/check_http_json.py
index 4f49f62..990241f 100755
--- a/check_http_json.py
+++ b/check_http_json.py
@@ -551,19 +551,21 @@ def parseArgs(args):
     parser.add_argument('-e', '--key_exists', dest='key_list', nargs='*',
                         help='''Checks existence of these keys to determine
                         status. Return warning if key is not present.''')
-    parser.add_argument('-E', '--key_exists_critical',
-                        dest='key_list_critical',
+    parser.add_argument('-E', '--key_exists_critical', dest='key_list_critical',
                         nargs='*',
                         help='''Same as -e but return critical if key is
                         not present.''')
-    parser.add_argument('-q', '--key_equals', dest='key_value_list', nargs='*',
+    parser.add_argument('-q', '--key_equals', dest='key_value_list',
+                        action='extend',
+                        nargs='*',
                         help='''Checks equality of these keys and values
                         (key[>alias],value key2,value2) to determine status.
                         Multiple key values can be delimited with colon
                         (key,value1:value2). Return warning if equality
                         check fails''')
-    parser.add_argument('-Q', '--key_equals_critical',
-                        dest='key_value_list_critical', nargs='*',
+    parser.add_argument('-Q', '--key_equals_critical', dest='key_value_list_critical',
+                        action='extend',
+                        nargs='*',
                         help='''Same as -q but return critical if
                         equality check fails.''')
     parser.add_argument('--key_time', dest='key_time_list', nargs='*',
@@ -571,7 +573,7 @@ def parseArgs(args):
                         (key[>alias],value key2,value2) to determine status.
                         Multiple key values can be delimited with colon
                         (key,value1:value2). Return warning if the key is older
-                        than the value (ex.: 30s,10m,2h,3d,...). 
+                        than the value (ex.: 30s,10m,2h,3d,...).
                         With at it return warning if the key is jounger
                         than the value (ex.: @30s,@10m,@2h,@3d,...).
                         With Minus you can shift the time in the future.''')