diff --git a/dist/index.js b/dist/index.js
index ce2ab746..b1a8e899 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -9155,7 +9155,7 @@ async function main() {
   await maybeInstallRebar3(rebar3Spec)
 
   // undefined is replaced by a function, post- main branch merge
-  const setupBeamVersion = '9db386c'
+  const setupBeamVersion = '2fdf20c'
   core.setOutput('setup-beam-version', setupBeamVersion)
 }
 
diff --git a/src/setup-beam.js b/src/setup-beam.js
index bfd8ca5a..41babb98 100644
--- a/src/setup-beam.js
+++ b/src/setup-beam.js
@@ -50,7 +50,7 @@ async function main() {
   await maybeInstallRebar3(rebar3Spec)
 
   // undefined is replaced by a function, post- main branch merge
-  const setupBeamVersion = '9db386c'
+  const setupBeamVersion = '2fdf20c'
   core.setOutput('setup-beam-version', setupBeamVersion)
 }