diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 206829e7a..be55d133c 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -66,7 +66,7 @@ Make a PR to add it as a link to [`README.md`](README.md#integrations) so others
 ## Testing the web viewer
 * Build with `scripts/build_demo_web.sh`
 * Host with `scripts/start_server.sh`
-* Open <http://localhost:8888/index.html>
+* Open <http://localhost:8765/index.html>
 
 
 ## Code Style
diff --git a/scripts/build_demo_web.sh b/scripts/build_demo_web.sh
index 6bf314521..3bc33d225 100755
--- a/scripts/build_demo_web.sh
+++ b/scripts/build_demo_web.sh
@@ -122,12 +122,12 @@ echo "Finished ${FINAL_WASM_PATH}"
 if [[ "${OPEN}" == true ]]; then
   if [[ "$OSTYPE" == "linux-gnu"* ]]; then
     # Linux, ex: Fedora
-    xdg-open http://localhost:8888/index.html
+    xdg-open http://localhost:8765/index.html
   elif [[ "$OSTYPE" == "msys" ]]; then
     # Windows
-    start http://localhost:8888/index.html
+    start http://localhost:8765/index.html
   else
     # Darwin/MacOS, or something else
-    open http://localhost:8888/index.html
+    open http://localhost:8765/index.html
   fi
 fi
diff --git a/scripts/start_server.sh b/scripts/start_server.sh
index 14243d749..e91288f17 100755
--- a/scripts/start_server.sh
+++ b/scripts/start_server.sh
@@ -6,7 +6,7 @@ cd "$script_path/.."
 # Starts a local web-server that serves the contents of the `doc/` folder,
 # i.e. the web-version of `egui_demo_app`.
 
-PORT=8888
+PORT=8765
 
 echo "ensuring basic-http-server is installed…"
 cargo install basic-http-server
diff --git a/web_demo/README.md b/web_demo/README.md
index 466be925f..62ac7a0fe 100644
--- a/web_demo/README.md
+++ b/web_demo/README.md
@@ -3,7 +3,7 @@ This folder contains the files required for the egui web demo hosted at <https:/
 ## Testing locally
 * Build with `scripts/build_demo_web.sh`
 * Host with `scripts/start_server.sh`
-* Open <http://localhost:8888/index.html>
+* Open <http://localhost:8765/index.html>
 
 ## Deploying egui.rs
 Each merge into `master` will trigger a new deploy