diff --git a/package-lock.json b/package-lock.json
index b8b479d9..7ae4eb16 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
       "license": "Apache-2.0",
       "dependencies": {
         "dashjs": "github:bbc/dash.js#smp-v4.7.3-0",
-        "smp-imsc": "github:bbc/imscJS#v1.0.3"
+        "smp-imsc": "github:bbc/imscJS#v1.0.11"
       },
       "devDependencies": {
         "@babel/core": "^7.16.12",
diff --git a/package.json b/package.json
index 6cee4fc0..b09de236 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,7 @@
   },
   "dependencies": {
     "dashjs": "github:bbc/dash.js#smp-v4.7.3-0",
-    "smp-imsc": "github:bbc/imscJS#v1.0.3"
+    "smp-imsc": "github:bbc/imscJS#v1.0.11"
   },
   "repository": {
     "type": "git",