diff --git a/package.json b/package.json
index e048611..bf0ea14 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vickymd",
-  "version": "0.1.1",
+  "version": "0.1.2",
   "description": "An experimental WYSIWYG markdown editor built on top of HyperMD with extended Widgets support",
   "main": "./everything.js",
   "types": "./everything.d.ts",
diff --git a/src/powerpack/fold-code-with-plantuml.ts b/src/powerpack/fold-code-with-plantuml.ts
index d9b83ac..77b1c95 100644
--- a/src/powerpack/fold-code-with-plantuml.ts
+++ b/src/powerpack/fold-code-with-plantuml.ts
@@ -21,7 +21,7 @@ export const PlantUMLRenderer: CodeRenderer = (code, info) => {
   el.style.margin = "8px";
 
   const encoded = window["plantumlEncoder"].encode(code);
-  const url = "http://www.plantuml.com/plantuml/img/" + encoded;
+  const url = "https://www.plantuml.com/plantuml/img/" + encoded;
 
   el.setAttribute("id", id);