diff --git a/package.json b/package.json
index 0546f09d..3e9f1a54 100644
--- a/package.json
+++ b/package.json
@@ -29,6 +29,7 @@
     "@babel/preset-env": "^7.11.0",
     "@rollup/plugin-babel": "^5.1.0",
     "@rollup/plugin-commonjs": "^15.0.0",
+    "@rollup/plugin-json": "^4.1.0",
     "@rollup/plugin-multi-entry": "^4.0.0",
     "@rollup/plugin-node-resolve": "^9.0.0",
     "autoprefixer": "^10.2.6",
diff --git a/scripts/post-install.js b/scripts/post-install.js
index 150807c3..4d51cd2e 100644
--- a/scripts/post-install.js
+++ b/scripts/post-install.js
@@ -22,6 +22,7 @@ const { fileURLToPath } = require('url');
 const { dirname } = require('path');
 // needed to translate commonjs modules to esm
 const commonjs = require('@rollup/plugin-commonjs');
+const json = require('@rollup/plugin-json');
 const { nodeResolve } = require('@rollup/plugin-node-resolve');
 
 const projectDir = path.join(__dirname, "../");
@@ -53,7 +54,7 @@ async function commonjsToESM(src, dst) {
     const bundle = await rollup({
         treeshake: {moduleSideEffects: false},
         input: src,
-        plugins: [commonjs(), nodeResolve({
+        plugins: [commonjs(), json(), nodeResolve({
             browser: true,
             preferBuiltins: false,
             customResolveOptions: {packageIterator}
@@ -77,6 +78,12 @@ async function populateLib() {
         await fs.symlink(path.join(olmSrcDir, file), path.join(olmDstDir, file));
     }
     // transpile another-json to esm
+    await fs.mkdir(path.join(libDir, "node-html-parser/"));
+    await commonjsToESM(
+        require.resolve('node-html-parser/dist/index.js'),
+        path.join(libDir, "node-html-parser/index.js")
+    );
+    // transpile another-json to esm
     await fs.mkdir(path.join(libDir, "another-json/"));
     await commonjsToESM(
         require.resolve('another-json/another-json.js'),
diff --git a/src/platform/web/dom/deserialize.js b/src/domain/session/room/timeline/deserialize.js
similarity index 97%
rename from src/platform/web/dom/deserialize.js
rename to src/domain/session/room/timeline/deserialize.js
index fdf8ae04..420d0010 100644
--- a/src/platform/web/dom/deserialize.js
+++ b/src/domain/session/room/timeline/deserialize.js
@@ -1,4 +1,4 @@
-import { MessageBody, HeaderBlock, ListBlock, CodeBlock, FormatPart, NewLinePart, RulePart, TextPart, LinkPart } from "../../../domain/session/room/timeline/MessageBody.js"
+import { MessageBody, HeaderBlock, ListBlock, CodeBlock, FormatPart, NewLinePart, RulePart, TextPart, LinkPart } from "./MessageBody.js"
 
 
 /* At the time of writing (Jul 1 2021), Matrix Spec recommends
@@ -141,8 +141,7 @@ export function parseHTMLBody(platform, html) {
     return new MessageBody(html, parts);
 }
 
-import parser from 'node-html-parser';
-const { parse } = parser;
+import parse from '../../../../../lib/node-html-parser/index.js';
 
 export class HTMLParseResult {
     constructor(bodyNode) {
diff --git a/src/domain/session/room/timeline/tiles/TextTile.js b/src/domain/session/room/timeline/tiles/TextTile.js
index f7e1d8c2..cbd35b72 100644
--- a/src/domain/session/room/timeline/tiles/TextTile.js
+++ b/src/domain/session/room/timeline/tiles/TextTile.js
@@ -16,7 +16,7 @@ limitations under the License.
 
 import {BaseTextTile} from "./BaseTextTile.js";
 import {parsePlainBody} from "../MessageBody.js";
-import {parseHTMLBody} from "../../../../../platform/web/dom/deserialize.js";
+import {parseHTMLBody} from "../deserialize.js";
 
 export class TextTile extends BaseTextTile {
     _getContentString(key, format, fallback = null) {
diff --git a/yarn.lock b/yarn.lock
index 28a240cc..211749b0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -886,6 +886,13 @@
     magic-string "^0.25.7"
     resolve "^1.17.0"
 
+"@rollup/plugin-json@^4.1.0":
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/@rollup/plugin-json/-/plugin-json-4.1.0.tgz#54e09867ae6963c593844d8bd7a9c718294496f3"
+  integrity sha512-yfLbTdNS6amI/2OpmbiBoW12vngr5NW2jCJVZSBEz+H5KfUJZ2M7sDjk0U6GOOdCWFVScShte29o9NezJ53TPw==
+  dependencies:
+    "@rollup/pluginutils" "^3.0.8"
+
 "@rollup/plugin-multi-entry@^4.0.0":
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/@rollup/plugin-multi-entry/-/plugin-multi-entry-4.0.0.tgz#8e105f16ec1bb26639eb3302c8db5665f44b9939"
@@ -911,7 +918,7 @@
   resolved "https://registry.yarnpkg.com/@rollup/plugin-virtual/-/plugin-virtual-2.0.3.tgz#0afc88d75c1e1378ab290b8e9898d4edb5be0d74"
   integrity sha512-pw6ziJcyjZtntQ//bkad9qXaBx665SgEL8C8KI5wO8G5iU5MPxvdWrQyVaAvjojGm9tJoS8M9Z/EEepbqieYmw==
 
-"@rollup/pluginutils@^3.1.0":
+"@rollup/pluginutils@^3.0.8", "@rollup/pluginutils@^3.1.0":
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/@rollup/pluginutils/-/pluginutils-3.1.0.tgz#706b4524ee6dc8b103b3c995533e5ad680c02b9b"
   integrity sha512-GksZ6pr6TpIjHm8h9lSQ8pi8BE9VeubNT0OMJ3B5uZJ8pz73NPiqOtCog/x2/QzM1ENChPKxMDhiQuRHsqc+lg==