diff --git a/ember/package.json b/ember/package.json
index a35f76f46..48e678174 100644
--- a/ember/package.json
+++ b/ember/package.json
@@ -18,7 +18,7 @@
     "test": "ember test"
   },
   "dependencies": {
-    "cesium": "1.74.0",
+    "cesium": "1.86.1",
     "ol": "5.3.3",
     "olcs": "2.12.0",
     "remarkable": "2.0.1",
diff --git a/ember/yarn.lock b/ember/yarn.lock
index df04d5f8a..513a903a1 100644
--- a/ember/yarn.lock
+++ b/ember/yarn.lock
@@ -4677,10 +4677,10 @@ center-align@^0.1.1:
     align-text "^0.1.3"
     lazy-cache "^1.0.3"
 
-cesium@1.74.0:
-  version "1.74.0"
-  resolved "https://registry.yarnpkg.com/cesium/-/cesium-1.74.0.tgz#79038abd40eb3e3a3223162d0984daf6d09496fb"
-  integrity sha512-PwHOz4nF9SUYrEo3Bcz0V7ebsB1XWqRkBkMWkn4BduBxNEzH8QdJ7ipuuNu8KZHfy3a1H2cOrwD8y8TikYmO8Q==
+cesium@1.86.1:
+  version "1.86.1"
+  resolved "https://registry.yarnpkg.com/cesium/-/cesium-1.86.1.tgz#c98c5453c133ed3d62c95de798c02d1d4d7f5b2e"
+  integrity sha512-LLgkPVVTTcmN2h781C4PAZRD11/4mmSWUDF7A/MPnwsnhOQhBE40FVNHzEUEnv+lCL1U+Yqdc3IloVB8EkIJhA==
 
 chalk@^1.0.0, chalk@^1.1.1, chalk@^1.1.3:
   version "1.1.3"