diff --git a/html/package.json b/html/package.json
index de0957a..a9f4a42 100644
--- a/html/package.json
+++ b/html/package.json
@@ -53,7 +53,7 @@
     "xterm": "^4.13.0",
     "xterm-addon-fit": "^0.5.0",
     "xterm-addon-web-links": "^0.4.0",
-    "xterm-addon-webgl": "^0.11.1",
+    "xterm-addon-webgl": "^0.12.0",
     "zmodem.js": "^0.1.10"
   }
 }
diff --git a/html/yarn.lock b/html/yarn.lock
index e18d001..fc64ee5 100644
--- a/html/yarn.lock
+++ b/html/yarn.lock
@@ -7778,10 +7778,10 @@ xterm-addon-web-links@^0.4.0:
   resolved "https://registry.yarnpkg.com/xterm-addon-web-links/-/xterm-addon-web-links-0.4.0.tgz#265cbf8221b9b315d0a748e1323bee331cd5da03"
   integrity sha512-xv8GeiINmx0zENO9hf5k+5bnkaE8mRzF+OBAr9WeFq2eLaQSudioQSiT34M1ofKbzcdjSsKiZm19Rw3i4eXamg==
 
-xterm-addon-webgl@^0.11.1:
-  version "0.11.1"
-  resolved "https://registry.yarnpkg.com/xterm-addon-webgl/-/xterm-addon-webgl-0.11.1.tgz#33dd250ab52e9f51d2ff52396447962e6f53e24c"
-  integrity sha512-xF6DnEoV+rPtzetMBXBZVe1kLKtus7AKdEcyfq2eMHQzhaRvC+pfnU+XiCXC85kueguqu2UkBHXZs5mihK9jOQ==
+xterm-addon-webgl@^0.12.0:
+  version "0.12.0"
+  resolved "https://registry.yarnpkg.com/xterm-addon-webgl/-/xterm-addon-webgl-0.12.0.tgz#2fba8d31890a122adafa1c2fb945482e2ae12973"
+  integrity sha512-3P5ihdjPnxH6Wrvqjki9UD+duoVrp1fvnO/pSpXP2F1L2GwY6TDNExgj8Yg141vMCNgQbcVqmsTLYEYZxjY92A==
 
 xterm@^4.13.0:
   version "4.13.0"