diff --git a/Dockerfile b/Dockerfile
index d99a40a..3912ef3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM checkmarx/dast:2.2.0
+FROM checkmarx/dast:2.3.0
 
 USER zap
 
diff --git a/action.yaml b/action.yaml
index 1be8f3d..65b5a6b 100644
--- a/action.yaml
+++ b/action.yaml
@@ -56,16 +56,16 @@ inputs:
     required: false
     default: "20"
     description: Time between retries in seconds, use with retry
-  proxy-url:
-    description: "Override the proxy used by the ZAP Engine"
+  proxy_url:
+    description: "Override the proxy used by the ZAP Engine (port number is set in proxy_port)"
     required: false
-  proxy-port:
+  proxy_port:
     description: "The port number for the proxy"
     required: false
-  poll-timeout:
+  poll_timeout:
     required: false
     description: "Poll timeout in seconds, for uploading results"
-  poll-ticker:
+  poll_ticker:
     required: false
     description: "Time interval between sending poll requests"
 runs: