diff --git a/Dockerfile b/Dockerfile
index f5af14a6..ff4f7540 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@ LABEL maintainer="fehguy"
 
 ENV VERSION "v2.2.10"
 ENV FOLDER "swagger-ui-2.2.10"
-ENV API_URL "http://petstore.swagger.io/v2/swagger.json"
+ENV API_URL "https://petstore.swagger.io/v2/swagger.json"
 ENV API_URLS ""
 ENV API_KEY "**None**"
 ENV OAUTH_CLIENT_ID "**None**"
diff --git a/dev-helpers/index.html b/dev-helpers/index.html
index 5053956c..e5df4e0f 100644
--- a/dev-helpers/index.html
+++ b/dev-helpers/index.html
@@ -43,7 +43,7 @@
       window["SwaggerUIStandalonePreset"] = window["swagger-ui-standalone-preset"]
       // Build a system
       const ui = SwaggerUIBundle({
-        url: "http://petstore.swagger.io/v2/swagger.json",
+        url: "https://petstore.swagger.io/v2/swagger.json",
         dom_id: '#swagger-ui',
         presets: [
           SwaggerUIBundle.presets.apis,
diff --git a/dist/index.html b/dist/index.html
index 7a45f1d5..ebebce1e 100644
--- a/dist/index.html
+++ b/dist/index.html
@@ -41,7 +41,7 @@
 
       // Build a system
       const ui = SwaggerUIBundle({
-        url: "http://petstore.swagger.io/v2/swagger.json",
+        url: "https://petstore.swagger.io/v2/swagger.json",
         dom_id: '#swagger-ui',
         deepLinking: true,
         presets: [
diff --git a/docker-run.sh b/docker-run.sh
index 3b0fa43d..ed8828b8 100644
--- a/docker-run.sh
+++ b/docker-run.sh
@@ -38,10 +38,10 @@ fi
 if [[ -f $SWAGGER_JSON ]]; then
   cp -s $SWAGGER_JSON $NGINX_ROOT
   REL_PATH="./$(basename $SWAGGER_JSON)"
-  sed -i "s|http://petstore.swagger.io/v2/swagger.json|$REL_PATH|g" $INDEX_FILE
+  sed -i "s|https://petstore.swagger.io/v2/swagger.json|$REL_PATH|g" $INDEX_FILE
   sed -i "s|http://example.com/api|$REL_PATH|g" $INDEX_FILE
 else
-  sed -i "s|http://petstore.swagger.io/v2/swagger.json|$API_URL|g" $INDEX_FILE
+  sed -i "s|https://petstore.swagger.io/v2/swagger.json|$API_URL|g" $INDEX_FILE
   sed -i "s|http://example.com/api|$API_URL|g" $INDEX_FILE
 fi
 
@@ -59,7 +59,7 @@ if [[ -n "$API_URLS" ]]; then
 fi
 
 # replace the PORT that nginx listens on if PORT is supplied
-if [[ -n "${PORT}" ]]; then 
+if [[ -n "${PORT}" ]]; then
     sed -i "s|8080|${PORT}|g" /etc/nginx/nginx.conf
 fi
 
diff --git a/docs/customization/custom-layout.md b/docs/customization/custom-layout.md
index 2b71c858..e0214ce3 100644
--- a/docs/customization/custom-layout.md
+++ b/docs/customization/custom-layout.md
@@ -40,7 +40,7 @@ const OperationsLayoutPlugin = () => {
 // Provide the plugin to Swagger-UI, and select OperationsLayout
 // as the layout for Swagger-UI
 SwaggerUI({
-  url: "http://petstore.swagger.io/v2/swagger.json",
+  url: "https://petstore.swagger.io/v2/swagger.json",
   plugins: [ OperationsLayoutPlugin ],
   layout: "OperationsLayout"
 })
@@ -85,7 +85,7 @@ const AugmentingLayoutPlugin = () => {
 // Provide the plugin to Swagger-UI, and select AugmentingLayout
 // as the layout for Swagger-UI
 SwaggerUI({
-  url: "http://petstore.swagger.io/v2/swagger.json",
+  url: "https://petstore.swagger.io/v2/swagger.json",
   plugins: [ AugmentingLayoutPlugin ],
   layout: "AugmentingLayout"
 })
diff --git a/docs/usage/cors.md b/docs/usage/cors.md
index 3b12273e..54212e98 100644
--- a/docs/usage/cors.md
+++ b/docs/usage/cors.md
@@ -21,7 +21,7 @@ You can verify CORS support with one of three techniques:
 - Curl your API and inspect the headers.  For instance:
 
 ```bash
-$ curl -I "http://petstore.swagger.io/v2/swagger.json"
+$ curl -I "https://petstore.swagger.io/v2/swagger.json"
 HTTP/1.1 200 OK
 Date: Sat, 31 Jan 2015 23:05:44 GMT
 Access-Control-Allow-Origin: *
diff --git a/docs/usage/installation.md b/docs/usage/installation.md
index 7e010dfe..a9345606 100644
--- a/docs/usage/installation.md
+++ b/docs/usage/installation.md
@@ -44,7 +44,7 @@ you could do something like this:
 var SwaggerUIBundle = require('swagger-ui-dist').SwaggerUIBundle
 
 const ui = SwaggerUIBundle({
-    url: "http://petstore.swagger.io/v2/swagger.json",
+    url: "https://petstore.swagger.io/v2/swagger.json",
     dom_id: '#swagger-ui',
     presets: [
       SwaggerUIBundle.presets.apis,
diff --git a/swagger-config.yaml b/swagger-config.yaml
index 798b0d27..52ae525a 100644
--- a/swagger-config.yaml
+++ b/swagger-config.yaml
@@ -1,5 +1,5 @@
 ---
-url: "http://petstore.swagger.io/v2/swagger.json"
+url: "https://petstore.swagger.io/v2/swagger.json"
 dom_id: "#swagger-ui"
 validatorUrl: "https://online.swagger.io/validator"
 oauth2RedirectUrl: "http://localhost:3200/oauth2-redirect.html"
diff --git a/test/e2e/helpers/index.html b/test/e2e/helpers/index.html
index 6552c857..7ecfdfab 100644
--- a/test/e2e/helpers/index.html
+++ b/test/e2e/helpers/index.html
@@ -75,7 +75,7 @@
     window["SwaggerUIStandalonePreset"] = window["swagger-ui-standalone-preset"]
     // Build a system
     const ui = SwaggerUIBundle({
-      url: "http://petstore.swagger.io/v2/swagger.json",
+      url: "https://petstore.swagger.io/v2/swagger.json",
       dom_id: '#swagger-ui',
       presets: [
         SwaggerUIBundle.presets.apis,