diff --git a/CHANGELOG.md b/CHANGELOG.md
index ac28c7c..4009a41 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 0.3.1
+
+- **Works with tsquare 0.13** as well as 0.12 (from 0.12.1). An app that installs tsquare 0.13 now shares one copy with this package instead of getting a second one. Nothing else changed; the tests pass on both 0.12.1 and 0.13.0.
+
 ## 0.3.0
 
 - **The editor and playground are imported from `@tsquare-js/react/editor`,** their own entry point, because they bundle CodeMirror (about 125 KB compressed): apps that import only `@tsquare-js/react` (boards, viewer, react-markdown) don't get it.
diff --git a/package-lock.json b/package-lock.json
index 62d9a8a..695b1b7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,15 +1,15 @@
 {
   "name": "@tsquare-js/react",
-  "version": "0.3.0",
+  "version": "0.3.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@tsquare-js/react",
-      "version": "0.3.0",
+      "version": "0.3.1",
       "license": "MIT",
       "dependencies": {
-        "tsquare": "^0.12.1"
+        "tsquare": "^0.12.1 || ^0.13.0"
       },
       "devDependencies": {
         "@types/jsdom": "^30.0.0",
@@ -2740,9 +2740,9 @@
       }
     },
     "node_modules/tsquare": {
-      "version": "0.12.1",
-      "resolved": "https://registry.npmjs.org/tsquare/-/tsquare-0.12.1.tgz",
-      "integrity": "sha512-ZVSZaOCFLKQMXuP2njeRriUGoXzclrkS93kH0uqhFZR/ZMO+vCvmLok4XIAiB6tQa+6bpsIMyOxfpZC9iucWlg==",
+      "version": "0.13.0",
+      "resolved": "https://registry.npmjs.org/tsquare/-/tsquare-0.13.0.tgz",
+      "integrity": "sha512-zyqL+u84NbAsKzq9A2n9SYsuL91FqJHXNwQV3sJLMcrCwiyXoOJztWfxhB5OQAoe9LJnZ8TWHZkemhKalilTuA==",
       "license": "MIT",
       "dependencies": {
         "@fontsource/inter": "5.3.0",
diff --git a/package.json b/package.json
index d38f54e..bd1a168 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tsquare-js/react",
-  "version": "0.3.0",
+  "version": "0.3.1",
   "description": "React component for tsquare wireframes: render wireframe text, or the ```tsquare blocks in react-markdown, including while a model's reply is still streaming in.",
   "keywords": [
     "tsquare",
@@ -51,7 +51,7 @@
     "prepare": "npm run build"
   },
   "dependencies": {
-    "tsquare": "^0.12.1"
+    "tsquare": "^0.12.1 || ^0.13.0"
   },
   "peerDependencies": {
     "react": ">=18"