diff --git a/.gitignore b/.gitignore
index 9f54310..50d2fa1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -143,4 +143,5 @@ build
 CD.sh
 PUB.sh
 CREATE.sh
-tsconfig.tsbuildinfo
\ No newline at end of file
+tsconfig.tsbuildinfo
+.idea/
diff --git a/STUDYPORTALS.md b/STUDYPORTALS.md
index 0b5b36f..a9d9bda 100644
--- a/STUDYPORTALS.md
+++ b/STUDYPORTALS.md
@@ -19,6 +19,8 @@ Run `sam build --region us-east-1` to build the infrastructure consisting of an
 
 Run `sam package --region us-east-1 --s3-bucket devops-sam-deployments-us-east-1 --output-template-file packaged.yaml` to prepare for deployment
 
+Run  `sam publish --template packaged.yaml --region us-east-1`
+
 Deploy it with `sam deploy --stack-name portal-experiments --region us-east-1 --capabilities CAPABILITY_IAM CAPABILITY_AUTO_EXPAND --parameter-overrides BucketNameParameter="portal-experiments" AlternateDomainNames="portal-experiments.studyportals.xyz" --s3-bucket devops-sam-deployments-us-east-1`
 
 Take note of the `UserPoolId` and `CognitoAuthDomain` and proceed further
diff --git a/template.yaml b/template.yaml
index 2bcfd02..0929890 100644
--- a/template.yaml
+++ b/template.yaml
@@ -148,7 +148,7 @@ Resources:
     Properties:
       CodeUri: src/lambda-edge/check-auth/
       Handler: bundle.handler
-      Runtime: nodejs12.x
+      Runtime: nodejs16.x
       Role: !GetAtt LambdaEdgeExecutionRole.Arn
       Timeout: 5
 
@@ -157,7 +157,7 @@ Resources:
     Properties:
       CodeUri: src/lambda-edge/parse-auth/
       Handler: bundle.handler
-      Runtime: nodejs12.x
+      Runtime: nodejs16.x
       Role: !GetAtt LambdaEdgeExecutionRole.Arn
       Timeout: 5
 
@@ -166,7 +166,7 @@ Resources:
     Properties:
       CodeUri: src/lambda-edge/refresh-auth/
       Handler: bundle.handler
-      Runtime: nodejs12.x
+      Runtime: nodejs16.x
       Role: !GetAtt LambdaEdgeExecutionRole.Arn
       Timeout: 5
 
@@ -175,7 +175,7 @@ Resources:
     Properties:
       CodeUri: src/lambda-edge/http-headers/
       Handler: bundle.handler
-      Runtime: nodejs12.x
+      Runtime: nodejs16.x
       Role: !GetAtt LambdaEdgeExecutionRole.Arn
       Timeout: 5
 
@@ -184,7 +184,7 @@ Resources:
     Properties:
       CodeUri: src/lambda-edge/sign-out/
       Handler: bundle.handler
-      Runtime: nodejs12.x
+      Runtime: nodejs16.x
       Role: !GetAtt LambdaEdgeExecutionRole.Arn
       Timeout: 5
 
@@ -337,7 +337,7 @@ Resources:
     Properties:
       CodeUri: src/cfn-custom-resources/user-pool-domain/
       Handler: index.handler
-      Runtime: nodejs12.x
+      Runtime: nodejs16.x
       Policies:
         - Version: "2012-10-17"
           Statement:
@@ -373,7 +373,7 @@ Resources:
     Properties:
       CodeUri: src/cfn-custom-resources/user-pool-client/
       Handler: index.handler
-      Runtime: nodejs12.x
+      Runtime: nodejs16.x
       Policies:
         - Version: "2012-10-17"
           Statement:
@@ -396,7 +396,7 @@ Resources:
     Properties:
       CodeUri: src/cfn-custom-resources/client-secret-retrieval/
       Handler: index.handler
-      Runtime: nodejs12.x
+      Runtime: nodejs16.x
       Policies:
         - Version: "2012-10-17"
           Statement:
@@ -418,7 +418,7 @@ Resources:
     Properties:
       CodeUri: src/cfn-custom-resources/static-site/
       Handler: bundle.handler
-      Runtime: nodejs12.x
+      Runtime: nodejs16.x
       Timeout: 180
       MemorySize: 2048
       Policies:
@@ -457,7 +457,7 @@ Resources:
     Properties:
       CodeUri: src/cfn-custom-resources/react-app/
       Handler: bundle.handler
-      Runtime: nodejs12.x
+      Runtime: nodejs16.x
       Timeout: 180
       MemorySize: 2048
       Policies:
@@ -682,7 +682,7 @@ Resources:
     Properties:
       CodeUri: src/cfn-custom-resources/lambda-code-update/
       Handler: index.handler
-      Runtime: nodejs12.x
+      Runtime: nodejs16.x
       Role: !GetAtt LambdaCodeUpdateHandlerRole.Arn
 
 
@@ -698,7 +698,7 @@ Resources:
     Properties:
       CodeUri: src/cfn-custom-resources/generate-secret/
       Handler: index.handler
-      Runtime: nodejs12.x
+      Runtime: nodejs16.x
 
 Outputs:
   S3Bucket: