diff --git a/deploy-all-in-one-tls.yaml b/deploy-all-in-one-tls.yaml
index 8690f75a6..7e4eb92ae 100644
--- a/deploy-all-in-one-tls.yaml
+++ b/deploy-all-in-one-tls.yaml
@@ -261,7 +261,8 @@ stringData:
         enabled: false
         awsSigning:
           enabled: false                            # enable awsSigning using IAM for Elastisearch hosted on AWS, if true make sure AWS environment variables are set. Refer https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-envvars.html
-          awsRegion: "us-east-1"                    # AWS region where Elasticsearch is deployed
+          awsRegion: 'us-east-1'                    # AWS region where Elasticsearch is deployed
+          roleArn: ''                               # AWS IAM Role arn to assume for credentials, use this only if you dont want to use the EC2 instance role or not running on AWS instance
         server: 'ELASTICSEARCH_ADDRESS'             # e.g https://example.com:9243
         username: 'ELASTICSEARCH_USERNAME'          # Basic Auth
         password: 'ELASTICSEARCH_PASSWORD'
diff --git a/deploy-all-in-one.yaml b/deploy-all-in-one.yaml
index 3620287a4..755947471 100644
--- a/deploy-all-in-one.yaml
+++ b/deploy-all-in-one.yaml
@@ -260,10 +260,11 @@ stringData:
       elasticsearch:
         enabled: false
         awsSigning:
-          enabled: false                             # enable awsSigning using IAM for Elastisearch hosted on AWS, if true make sure AWS environment variables are set. Refer https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-envvars.html
-          awsRegion: "us-east-1"                     # AWS region where Elasticsearch is deployed
-        server: 'ELASTICSEARCH_ADDRESS'              # e.g https://example.com:9243
-        username: 'ELASTICSEARCH_USERNAME'           # Basic Auth
+          enabled: false                            # enable awsSigning using IAM for Elastisearch hosted on AWS, if true make sure AWS environment variables are set. Refer https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-envvars.html
+          awsRegion: 'us-east-1'                    # AWS region where Elasticsearch is deployed
+          roleArn: ''                               # AWS IAM Role arn to assume for credentials, use this only if you dont want to use the EC2 instance role or not running on AWS instance
+        server: 'ELASTICSEARCH_ADDRESS'             # e.g https://example.com:9243
+        username: 'ELASTICSEARCH_USERNAME'          # Basic Auth
         password: 'ELASTICSEARCH_PASSWORD'
         # ELS index settings
         index:
diff --git a/helm/botkube/templates/deployment.yaml b/helm/botkube/templates/deployment.yaml
index 712e70a5d..82f7ea8a9 100644
--- a/helm/botkube/templates/deployment.yaml
+++ b/helm/botkube/templates/deployment.yaml
@@ -26,6 +26,9 @@ spec:
 {{ toYaml .Values.extraAnnotations | indent 8 }}
       {{- end }}
     spec:
+      {{- if .Values.priorityClassName }}
+      priorityClassName: "{{ .Values.priorityClassName }}"
+      {{- end }}
       serviceAccountName: {{ include "botkube.serviceAccountName" . }}
       containers:
         - name: {{ .Chart.Name }}
diff --git a/helm/botkube/values.yaml b/helm/botkube/values.yaml
index 08875fa78..9d9833dbb 100644
--- a/helm/botkube/values.yaml
+++ b/helm/botkube/values.yaml
@@ -5,6 +5,8 @@
 replicaCount: 1
 # Extra annotations to pass to the botkube pod
 extraAnnotations: {}
+# Priority class name for the pod
+priorityClassName: ""
 image:
   repository: infracloudio/botkube
   pullPolicy: IfNotPresent
@@ -269,10 +271,11 @@ communications:
   elasticsearch:
     enabled: false
     awsSigning:
-      enabled: false                             # enable awsSigning using IAM for Elastisearch hosted on AWS, if true make sure AWS environment variables are set. Refer https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-envvars.html
-      awsRegion: "us-east-1"                     # AWS region where Elasticsearch is deployed
-    server: 'ELASTICSEARCH_ADDRESS'                                    # e.g https://example.com:9243
-    username: 'ELASTICSEARCH_USERNAME'                                 # Basic Auth
+      enabled: false                            # enable awsSigning using IAM for Elastisearch hosted on AWS, if true make sure AWS environment variables are set. Refer https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-envvars.html
+      awsRegion: "us-east-1"                    # AWS region where Elasticsearch is deployed
+      roleArn: ''                               # AWS IAM Role arn to assume for credentials, use this only if you dont want to use the EC2 instance role or not running on AWS instance
+    server: 'ELASTICSEARCH_ADDRESS'             # e.g https://example.com:9243
+    username: 'ELASTICSEARCH_USERNAME'          # Basic Auth
     password: 'ELASTICSEARCH_PASSWORD'
     # ELS index settings
     index: