diff --git a/tinkerbell/stack/Chart.yaml b/tinkerbell/stack/Chart.yaml
index 8fe49f67..bae36e18 100644
--- a/tinkerbell/stack/Chart.yaml
+++ b/tinkerbell/stack/Chart.yaml
@@ -15,13 +15,13 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.4.1
+version: 0.4.2
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
 # follow Semantic Versioning. They should reflect the version the application is using.
 # It is recommended to use it with quotes.
-appVersion: "0.4.1"
+appVersion: "0.4.2"
 
 dependencies:
   - name: tink
diff --git a/tinkerbell/stack/templates/nginx-configmap.yaml b/tinkerbell/stack/templates/nginx-configmap.yaml
index 354c8e21..9a8484b3 100644
--- a/tinkerbell/stack/templates/nginx-configmap.yaml
+++ b/tinkerbell/stack/templates/nginx-configmap.yaml
@@ -21,7 +21,7 @@ data:
           proxy_set_header X-Real-IP $remote_addr;
           proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
           resolver $POD_NAMESERVER;
-          set $smee_dns {{ .Values.smee.name }}.{{ .Release.Namespace }}.svc.cluster.local; # needed in Kubernetes for dynamic DNS resolution
+          set $smee_dns {{ .Values.smee.name }}.{{ .Release.Namespace }}.svc.cluster.local.; # needed in Kubernetes for dynamic DNS resolution
 
           proxy_pass http://$smee_dns:{{ .Values.smee.http.port }};
         }
@@ -55,6 +55,8 @@ data:
        server {
         listen {{ .Values.stack.hook.port }};
         location / {
+          sendfile           on;
+          sendfile_max_chunk 1m;
           root /usr/share/nginx/html;
         }
       }
@@ -66,15 +68,14 @@ data:
       server {
           listen {{ .Values.smee.tftp.port }} udp;
           resolver $POD_NAMESERVER;
-          set $smee_dns {{ .Values.smee.name }}.{{ .Release.Namespace }}.svc.cluster.local; # needed in Kubernetes for dynamic DNS resolution
+          set $smee_dns {{ .Values.smee.name }}.{{ .Release.Namespace }}.svc.cluster.local.; # needed in Kubernetes for dynamic DNS resolution
           proxy_pass $smee_dns:{{ .Values.smee.tftp.port }};
-          proxy_timeout 1s;
           access_log /dev/stdout logger-json;
       }
       server {
           listen {{ .Values.smee.syslog.port }} udp;
           resolver $POD_NAMESERVER;
-          set $smee_dns {{ .Values.smee.name }}.{{ .Release.Namespace }}.svc.cluster.local; # needed in Kubernetes for dynamic DNS resolution
+          set $smee_dns {{ .Values.smee.name }}.{{ .Release.Namespace }}.svc.cluster.local.; # needed in Kubernetes for dynamic DNS resolution
           proxy_pass $smee_dns:{{ .Values.smee.syslog.port }};
           access_log /dev/stdout logger-json;
       }