diff --git a/Cargo.lock b/Cargo.lock
index 2243c8e..6c78a18 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1221,7 +1221,7 @@ dependencies = [
 
 [[package]]
 name = "runrs"
-version = "1.1.4"
+version = "1.1.5"
 dependencies = [
  "argh",
  "reqwest",
diff --git a/Cargo.toml b/Cargo.toml
index fc38eb0..05603b0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "runrs"
-version = "1.1.4"
+version = "1.1.5"
 edition = "2018"
 license = "MIT/Apache-2.0"
 description = "A Tool for Run Rust Scripts"
diff --git a/src/run_ts.rs b/src/run_ts.rs
index 4534edd..28cc82c 100644
--- a/src/run_ts.rs
+++ b/src/run_ts.rs
@@ -4,13 +4,21 @@ use rust_util::util_env::is_env_on;
 use std::fs;
 use std::process::Command;
 
+const RUNTIME_DENO: &str = "--runtime-deno";
+const RUNTIME_BUN: &str = "--runtime-bun";
+
 pub fn do_run_script(args: &RunScriptArgs) {
     if args.arguments.is_empty() {
         failure_and_exit!("Must assign a script file name");
     }
     debugging!("Run ts args: {:?}", args.arguments);
+
+    let mut is_runtime_deno = true;
     let (script_file, first_arg) = (|| {
         for (i, arg) in args.arguments.iter().enumerate() {
+            if arg == RUNTIME_DENO || arg == RUNTIME_BUN {
+                is_runtime_deno = arg == RUNTIME_DENO;
+            }
             if !arg.starts_with("--") {
                 return (arg, i == 0);
             }
@@ -20,17 +28,33 @@ pub fn do_run_script(args: &RunScriptArgs) {
     verify::verify_script(script_file, is_env_on("RUNTS_SKIP_VERIFY"));
 
     let mut cmd = Command::new("/usr/bin/env");
-    cmd.args(["-S", "deno", "run"]);
+    // #!/usr/bin/env runts -- --allow-env
+    // #!/usr/bin/env runts -- [--runtime-deno | --runtime-bun] <args>
     if first_arg {
         let first_line_args = read_first_line_parse_args(script_file);
+        debugging!("Runts first line args: {:?}", first_line_args);
         let left_first_line_args = first_line_args
             .iter()
             .skip_while(|arg| *arg != "--" && *arg != "run")
             .skip(1)
+            .filter(|arg| {
+                if *arg == RUNTIME_DENO || *arg == RUNTIME_BUN {
+                    is_runtime_deno = *arg == RUNTIME_DENO;
+                    debugging!("Runts runtime arg: {}, is runtime deno: {}", *arg, is_runtime_deno);
+                    return false;
+                }
+                true
+            })
             .collect::<Vec<_>>();
+        cmd.args(["-S", iff!(is_runtime_deno, "deno", "bun"), "run"]);
         cmd.args(left_first_line_args);
+    } else {
+        cmd.args(["-S", iff!(is_runtime_deno, "deno", "bun"), "run"]);
     }
     for arg in &args.arguments {
+        if arg == RUNTIME_DENO || arg == RUNTIME_BUN {
+            continue;
+        }
         cmd.arg(arg);
     }