diff --git a/action.yml b/action.yml
index 52dde08..073b10a 100644
--- a/action.yml
+++ b/action.yml
@@ -21,6 +21,9 @@ inputs:
   loadtest:
     description: 'load-test option. e.g "true"'
     required: false
+  concurrency:
+    description: 'concurrency option. e.g. "0"'
+    required: false
 
 runs:
   using: 'docker'
diff --git a/docs/reference/cli.md b/docs/reference/cli.md
index 5cf80b5..9531cfa 100644
--- a/docs/reference/cli.md
+++ b/docs/reference/cli.md
@@ -69,6 +69,7 @@ The `run` command lets you run a specified workflow
 | --secret [-s] | No | Supply secret variables (can be defined multiple times) |
 | --verbose [-v] | No | Verbose mode: always show request/response |
 | --loadtest [-load] | No | Run test in load-testing mode |
+| --concurrency | No | Concurrency setting |
 
 #### **Examples**
 
diff --git a/entrypoint.sh b/entrypoint.sh
index c657ec0..afb9ac0 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -20,4 +20,8 @@ if [ "$LOADTEST" == "true" ]; then
     EXECUTION_COMMAND="$EXECUTION_COMMAND --load"
 fi
 
+if [ -n "$CONCURRENCY" ]; then
+    EXECUTION_COMMAND="$EXECUTION_COMMAND --concurrency $CONCURRENCY"
+fi
+
 eval $EXECUTION_COMMAND