diff --git a/src/write-functions/templates/events.js b/src/write-functions/templates/events.js
index f92c823..0cfba07 100644
--- a/src/write-functions/templates/events.js
+++ b/src/write-functions/templates/events.js
@@ -18,7 +18,7 @@ export async function handler (event: object) {
 }`
 
 let ruby = `# ${learn}
-def handler(event)
+def handler(event:, context:)
   puts event
   true
 end`
diff --git a/src/write-functions/templates/http.js b/src/write-functions/templates/http.js
index 524fe85..103f153 100644
--- a/src/write-functions/templates/http.js
+++ b/src/write-functions/templates/http.js
@@ -103,7 +103,7 @@ exports.handler = async function http (req) {${nodeBody(path)}}`,
 }
 
 let ruby = path => `# ${learn}
-def handler(req, context)
+def handler(event:, context:)
   {
     statusCode: 200,
     headers: {
diff --git a/src/write-functions/templates/queues.js b/src/write-functions/templates/queues.js
index 66ee064..78be180 100644
--- a/src/write-functions/templates/queues.js
+++ b/src/write-functions/templates/queues.js
@@ -19,7 +19,7 @@ export async function handler (event: object) {
 }`
 
 let ruby = `# ${learn}
-def handler(event)
+def handler(event:, context:)
   puts event
   true
 end`
diff --git a/src/write-functions/templates/scheduled.js b/src/write-functions/templates/scheduled.js
index 763e0f7..be52f9a 100644
--- a/src/write-functions/templates/scheduled.js
+++ b/src/write-functions/templates/scheduled.js
@@ -18,7 +18,7 @@ export async function handler (event: object) {
 }`
 
 let ruby = `# ${learn}
-def handler(event)
+def handler(event:, context:)
   puts event
   true
 end`
diff --git a/src/write-functions/templates/tables-streams.js b/src/write-functions/templates/tables-streams.js
index ac1bb81..ccdfe82 100644
--- a/src/write-functions/templates/tables-streams.js
+++ b/src/write-functions/templates/tables-streams.js
@@ -18,7 +18,7 @@ export async function handler (event: object) {
 }`
 
 let ruby = `# ${learn}
-def handler(event)
+def handler(event:, context:)
   puts event
   true
 end`
diff --git a/src/write-functions/templates/ws.js b/src/write-functions/templates/ws.js
index c31a2e6..b4941ff 100644
--- a/src/write-functions/templates/ws.js
+++ b/src/write-functions/templates/ws.js
@@ -18,7 +18,7 @@ export async function handler (event: object) {
 }`
 
 let ruby = `# ${learn}
-def handler(event)
+def handler(event:, context:)
   puts event
   {statusCode: 200}
 end`