diff --git a/package-lock.json b/package-lock.json
index 81421bdbc..3b447e0ea 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
       "dependencies": {
         "bpmn-moddle": "^8.0.0",
         "css.escape": "^1.5.1",
-        "diagram-js": "^11.7.0",
+        "diagram-js": "github:bpmn-io/diagram-js#round-corners",
         "diagram-js-direct-editing": "^2.0.0",
         "ids": "^1.0.0",
         "inherits-browser": "^0.1.0",
@@ -3099,9 +3099,9 @@
       "dev": true
     },
     "node_modules/diagram-js": {
-      "version": "11.7.0",
-      "resolved": "https://registry.npmjs.org/diagram-js/-/diagram-js-11.7.0.tgz",
-      "integrity": "sha512-NGXQzrYpcC8dZgUSpIT0KwAlCX1ncfiGJr9h6NnAP9ylx/PjQ1ywiLwWQa7nk7Rx63GtJghs6KNF5/sISpeTmw==",
+      "version": "11.6.0",
+      "resolved": "git+ssh://git@github.com/bpmn-io/diagram-js.git#5b8c3d9ccb8ca4b79cae1bbb77b70812f3a41938",
+      "license": "MIT",
       "dependencies": {
         "@bpmn-io/diagram-js-ui": "^0.2.2",
         "clsx": "^1.2.1",
@@ -14819,9 +14819,8 @@
       "dev": true
     },
     "diagram-js": {
-      "version": "11.7.0",
-      "resolved": "https://registry.npmjs.org/diagram-js/-/diagram-js-11.7.0.tgz",
-      "integrity": "sha512-NGXQzrYpcC8dZgUSpIT0KwAlCX1ncfiGJr9h6NnAP9ylx/PjQ1ywiLwWQa7nk7Rx63GtJghs6KNF5/sISpeTmw==",
+      "version": "git+ssh://git@github.com/bpmn-io/diagram-js.git#5b8c3d9ccb8ca4b79cae1bbb77b70812f3a41938",
+      "from": "diagram-js@github:bpmn-io/diagram-js#round-corners",
       "requires": {
         "@bpmn-io/diagram-js-ui": "^0.2.2",
         "clsx": "^1.2.1",
diff --git a/package.json b/package.json
index 6acabd83a..ca4b0cf76 100644
--- a/package.json
+++ b/package.json
@@ -97,7 +97,7 @@
   "dependencies": {
     "bpmn-moddle": "^8.0.0",
     "css.escape": "^1.5.1",
-    "diagram-js": "^11.7.0",
+    "diagram-js": "github:bpmn-io/diagram-js#round-corners",
     "diagram-js-direct-editing": "^2.0.0",
     "ids": "^1.0.0",
     "inherits-browser": "^0.1.0",