diff --git a/action.py b/action.py
index 1ba50f6..4cf40d3 100644
--- a/action.py
+++ b/action.py
@@ -99,7 +99,8 @@ def load_chart(specs):
 
 def run_helm(cmd, params=None, cwd=None, exit=True, **env):
     params = params or []
-    helm_cmd = " ".join(["helm", cmd] + params)
+    helm_bin = os.environ.get("HELM_BIN", "helm")
+    helm_cmd = " ".join([helm_bin, cmd] + params)
     proc = subprocess.Popen(
         shlex.split(helm_cmd),
         shell=False,
diff --git a/action.yml b/action.yml
index 8ceb96e..46f7c4e 100644
--- a/action.yml
+++ b/action.yml
@@ -54,6 +54,8 @@ runs:
       run: |
         set -eou pipefail
 
+        export HELM_BIN=$(command -v helm)
+
         export GHINPUT_CHART_VERSION="${{ inputs.chart-version }}"
         export GHINPUT_CHART="${{ inputs.chart }}"
         export GHINPUT_DRY_RUN="${{ inputs.dry-run }}"