diff --git a/README.md b/README.md
index ce687f8..2231579 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@
 APIの参照先をコントロールするために dotenv を使用しています。  
 `.env` ファイルを作成し、以下のように記述してください。
 ```
-URL_API=http://togomedium.org/sparqlist/api/
+URL_API=https://togomedium.org/sparqlist/api/
 ```
 また、github actions でビルドを行うために同様の Repository Secretsを設定する必要があります。
 
diff --git a/shared/utils/variables.ts b/shared/utils/variables.ts
index a6872cf..ae904dd 100644
--- a/shared/utils/variables.ts
+++ b/shared/utils/variables.ts
@@ -1,2 +1,2 @@
 const ENV_URL_API = typeof process !== "undefined" ? process.env?.URL_API : undefined;
-export const URL_API: string = ENV_URL_API ?? "http://togomedium.org/sparqlist/api/";
+export const URL_API: string = ENV_URL_API ?? "https://togomedium.org/sparqlist/api/";
diff --git a/stanzas/gmdb-meta-list/App.stories.tsx b/stanzas/gmdb-meta-list/App.stories.tsx
index 0869ebe..f3af43f 100644
--- a/stanzas/gmdb-meta-list/App.stories.tsx
+++ b/stanzas/gmdb-meta-list/App.stories.tsx
@@ -10,7 +10,7 @@ const Template: ComponentStory<typeof App> = (args) => <App {...args} />;
 
 export const Media = Template.bind({});
 Media.args = {
-  apiUrl: "http://togomedium.org/sparqlist/api/list_media",
+  apiUrl: "https://togomedium.org/sparqlist/api/list_media",
   initialLimit: 20,
   title: "List Media",
   showColumnNames: true,
@@ -20,7 +20,7 @@ Media.args = {
 
 export const Strains = Template.bind({});
 Strains.args = {
-  apiUrl: "http://togomedium.org/sparqlist/api/list_strains",
+  apiUrl: "https://togomedium.org/sparqlist/api/list_strains",
   initialLimit: 20,
   title: "List Media",
   showColumnNames: true,
@@ -29,7 +29,7 @@ Strains.args = {
 };
 export const Components = Template.bind({});
 Components.args = {
-  apiUrl: "http://togomedium.org/sparqlist/api/list_components",
+  apiUrl: "https://togomedium.org/sparqlist/api/list_components",
   initialLimit: 100,
   title: "List Media",
   showColumnNames: true,
@@ -38,7 +38,7 @@ Components.args = {
 };
 export const ChildItems = Template.bind({});
 ChildItems.args = {
-  apiUrl: "http://togomedium.org/sparqlist/api/gmdb_organism_under_rank_by_taxid?tax_id=293088",
+  apiUrl: "https://togomedium.org/sparqlist/api/gmdb_organism_under_rank_by_taxid?tax_id=293088",
   initialLimit: 10,
   title: "List Media",
   showColumnNames: true,
@@ -48,7 +48,7 @@ ChildItems.args = {
 
 export const SimilarMedia = Template.bind({});
 SimilarMedia.args = {
-  apiUrl: "http://togomedium.org/sparqlist/api/gmdb_list_similar_media_by_gmid?gm_id=M1",
+  apiUrl: "https://togomedium.org/sparqlist/api/gmdb_list_similar_media_by_gmid?gm_id=M1",
   initialLimit: 10,
   title: "List similar media",
   showColumnNames: true,
diff --git a/stanzas/gmdb-meta-list/metadata.json b/stanzas/gmdb-meta-list/metadata.json
index 93a4568..407e377 100644
--- a/stanzas/gmdb-meta-list/metadata.json
+++ b/stanzas/gmdb-meta-list/metadata.json
@@ -17,7 +17,7 @@
   "stanza:parameter": [
     {
       "stanza:key": "api_url",
-      "stanza:example": "http://togomedium.org/sparqlist/api/list_media",
+      "stanza:example": "https://togomedium.org/sparqlist/api/list_media",
       "stanza:description": "URL of the SPARQList API with queries",
       "stanza:required": true
     },