diff --git a/Dockerfile b/Dockerfile
index 3caea14..d3b4121 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:15-alpine
+FROM node:20-alpine
 
 RUN apk --no-cache add curl
 
@@ -19,4 +19,4 @@ ENV DB_PREFIX /data/dbs/
 
 ENV SECRET_DIRNAME /data
 
-CMD ./Dockerstart.sh
\ No newline at end of file
+CMD ./Dockerstart.sh
diff --git a/README.md b/README.md
index 5acb686..0ebba49 100644
--- a/README.md
+++ b/README.md
@@ -49,6 +49,10 @@ services:
       # (for weddings, birthdays, etc. only the admin account's list is accessible)
       # Set to 'true' to enable
       SINGLE_LIST: 'false'
+      # Some websites (like walmart) send headers that are larger than 8MB in
+      # length. If issues are encountered, set the node.js limit to a higher
+      # number than 8192
+      #NODE_OPTIONS: "--max-http-header-size=32768"
     restart: always
 ```