diff --git a/action.yml b/action.yml
index bf46375..05c8fd5 100644
--- a/action.yml
+++ b/action.yml
@@ -39,4 +39,4 @@ outputs:
 runs:
   using: docker
   # image: 'Dockerfile'
-  image: 'docker://ghcr.io/jniklas2/dnscontrol-action:v4.14.0-3'
+  image: 'docker://ghcr.io/jniklas2/dnscontrol-action:v4.14.0-4'
diff --git a/entrypoint.sh b/entrypoint.sh
index 2e43f76..3143eb9 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -26,14 +26,6 @@ if [ "$ALLOW_FETCH" = true ]; then
   ARGS+=(--allow-fetch)
 fi
 
-if !(printf '%s\0' "$@" | grep -Fxqz -- 'check'); then
-  if [ "$ENABLE_CONCURRENT" = true ]; then
-    ARGS+=("--cmode=concurrent")
-  elif [ "$ENABLE_CONCURRENT" = true ]; then
-    ARGS+=("--cmode=legacy")
-  fi
-fi
-
 ARGS+=(
   "$@"
   --config "$CONFIG_ABS_PATH"
@@ -42,6 +34,12 @@ ARGS+=(
 # 'check' sub-command doesn't require credentials
 if [ "$1" != "check" ]; then
   ARGS+=(--creds "$CREDS_ABS_PATH")
+
+  if [ "$ENABLE_CONCURRENT" = true ]; then
+    ARGS+=(--cmode "concurrent")
+  elif [ "$ENABLE_CONCURRENT" = true ]; then
+    ARGS+=(--cmode "legacy")
+  fi
 fi
 
 OUTPUT=()