diff --git a/notify/teams.sh b/notify/teams.sh
old mode 100644
new mode 100755
index 1bc5ed08..aa4d2a4e
--- a/notify/teams.sh
+++ b/notify/teams.sh
@@ -3,10 +3,6 @@
 #Support Microsoft Teams webhooks
 
 #TEAMS_WEBHOOK_URL=""
-#TEAMS_THEME_COLOR=""
-#TEAMS_SUCCESS_COLOR=""
-#TEAMS_ERROR_COLOR=""
-#TEAMS_SKIP_COLOR=""
 
 teams_send() {
   _subject="$1"
@@ -14,9 +10,9 @@ teams_send() {
   _statusCode="$3" #0: success, 1: error 2($RENEW_SKIP): skipped
   _debug "_statusCode" "$_statusCode"
 
-  _color_success="2cbe4e" # green
-  _color_danger="cb2431"  # red
-  _color_muted="586069"   # gray
+  _color_success="Good" # green
+  _color_danger="Attention"  # red
+  _color_muted="Accent"   # gray
 
   TEAMS_WEBHOOK_URL="${TEAMS_WEBHOOK_URL:-$(_readaccountconf_mutable TEAMS_WEBHOOK_URL)}"
   if [ -z "$TEAMS_WEBHOOK_URL" ]; then
@@ -26,26 +22,6 @@ teams_send() {
   fi
   _saveaccountconf_mutable TEAMS_WEBHOOK_URL "$TEAMS_WEBHOOK_URL"
 
-  TEAMS_THEME_COLOR="${TEAMS_THEME_COLOR:-$(_readaccountconf_mutable TEAMS_THEME_COLOR)}"
-  if [ -n "$TEAMS_THEME_COLOR" ]; then
-    _saveaccountconf_mutable TEAMS_THEME_COLOR "$TEAMS_THEME_COLOR"
-  fi
-
-  TEAMS_SUCCESS_COLOR="${TEAMS_SUCCESS_COLOR:-$(_readaccountconf_mutable TEAMS_SUCCESS_COLOR)}"
-  if [ -n "$TEAMS_SUCCESS_COLOR" ]; then
-    _saveaccountconf_mutable TEAMS_SUCCESS_COLOR "$TEAMS_SUCCESS_COLOR"
-  fi
-
-  TEAMS_ERROR_COLOR="${TEAMS_ERROR_COLOR:-$(_readaccountconf_mutable TEAMS_ERROR_COLOR)}"
-  if [ -n "$TEAMS_ERROR_COLOR" ]; then
-    _saveaccountconf_mutable TEAMS_ERROR_COLOR "$TEAMS_ERROR_COLOR"
-  fi
-
-  TEAMS_SKIP_COLOR="${TEAMS_SKIP_COLOR:-$(_readaccountconf_mutable TEAMS_SKIP_COLOR)}"
-  if [ -n "$TEAMS_SKIP_COLOR" ]; then
-    _saveaccountconf_mutable TEAMS_SKIP_COLOR "$TEAMS_SKIP_COLOR"
-  fi
-
   export _H1="Content-Type: application/json"
 
   _subject=$(echo "$_subject" | _json_encode)
@@ -63,16 +39,35 @@ teams_send() {
     ;;
   esac
 
-  _color=$(echo "$_color" | tr -cd 'a-fA-F0-9')
-  if [ -z "$_color" ]; then
-    _color=$(echo "${TEAMS_THEME_COLOR:-$_color_muted}" | tr -cd 'a-fA-F0-9')
-  fi
-
-  _data="{\"title\": \"$_subject\","
-  if [ -n "$_color" ]; then
-    _data="$_data\"themeColor\": \"$_color\", "
-  fi
-  _data="$_data\"text\": \"$_content\"}"
+  _data="{
+    \"type\": \"message\",
+    \"attachments\": [
+        {
+            \"contentType\": \"application/vnd.microsoft.card.adaptive\",
+            \"contentUrl\": null,
+            \"content\": {
+                \"$schema\": \"http://adaptivecards.io/schemas/adaptive-card.json\",
+                \"type\": \"AdaptiveCard\",
+                \"version\": \"1.2\",
+                \"body\": [
+                    {
+                        \"type\": \"TextBlock\",
+                        \"size\": \"large\",
+                        \"weight\": \"bolder\",
+                        \"wrap\": true,
+                        \"color\": \"$_color\",
+                        \"text\": \"$_subject\"
+                    },
+                    {
+                        \"type\": \"TextBlock\",
+                        \"text\": \"$_content\",
+                        \"wrap\": true
+                    }
+                ]
+            }
+        }
+    ]
+}"
 
   if response=$(_post "$_data" "$TEAMS_WEBHOOK_URL"); then
     if ! _contains "$response" error; then