diff --git a/packages/building-rollup/package.json b/packages/building-rollup/package.json
index 8c579742..3df50d23 100644
--- a/packages/building-rollup/package.json
+++ b/packages/building-rollup/package.json
@@ -60,7 +60,7 @@
     "@babel/plugin-proposal-optional-chaining": "^7.11.0",
     "@babel/plugin-syntax-dynamic-import": "^7.8.3",
     "@babel/plugin-syntax-import-meta": "^7.10.4",
-    "@babel/plugin-transform-modules-systemjs": "^7.9.0",
+    "@babel/plugin-transform-modules-systemjs": "^7.10.5",
     "@babel/plugin-transform-runtime": "^7.9.0",
     "@babel/preset-env": "^7.9.0",
     "@open-wc/building-utils": "^2.18.0",
diff --git a/packages/es-dev-server/package.json b/packages/es-dev-server/package.json
index 941c0d0f..a520d6c2 100644
--- a/packages/es-dev-server/package.json
+++ b/packages/es-dev-server/package.json
@@ -129,7 +129,7 @@
     "@babel/plugin-proposal-class-properties": "^7.8.3",
     "@babel/plugin-proposal-decorators": "^7.8.3",
     "@babel/plugin-proposal-private-methods": "^7.8.3",
-    "@babel/plugin-transform-modules-systemjs": "^7.9.0",
+    "@babel/plugin-transform-modules-systemjs": "^7.10.5",
     "@babel/preset-typescript": "^7.8.3",
     "@babel/register": "^7.9.0",
     "@types/koa__cors": "^3.0.1",
diff --git a/yarn.lock b/yarn.lock
index c36f56a4..94190618 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -327,6 +327,13 @@
   dependencies:
     "@babel/types" "^7.8.3"
 
+"@babel/helper-hoist-variables@^7.10.4":
+  version "7.10.4"
+  resolved "https://registry.yarnpkg.com/@babel/helper-hoist-variables/-/helper-hoist-variables-7.10.4.tgz#d49b001d1d5a68ca5e6604dda01a6297f7c9381e"
+  integrity sha512-wljroF5PgCk2juF69kanHVs6vrLwIPNp6DLD+Lrl3hoQ3PpPPikaDRNFA+0t81NOoMt2DL6WW/mdU8k4k6ZzuA==
+  dependencies:
+    "@babel/types" "^7.10.4"
+
 "@babel/helper-hoist-variables@^7.8.3":
   version "7.8.3"
   resolved "https://registry.yarnpkg.com/@babel/helper-hoist-variables/-/helper-hoist-variables-7.8.3.tgz#1dbe9b6b55d78c9b4183fc8cdc6e30ceb83b7134"
@@ -966,7 +973,17 @@
     "@babel/helper-simple-access" "^7.8.3"
     babel-plugin-dynamic-import-node "^2.3.3"
 
-"@babel/plugin-transform-modules-systemjs@^7.9.0", "@babel/plugin-transform-modules-systemjs@^7.9.6":
+"@babel/plugin-transform-modules-systemjs@^7.10.5":
+  version "7.10.5"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-modules-systemjs/-/plugin-transform-modules-systemjs-7.10.5.tgz#6270099c854066681bae9e05f87e1b9cadbe8c85"
+  integrity sha512-f4RLO/OL14/FP1AEbcsWMzpbUz6tssRaeQg11RH1BP/XnPpRoVwgeYViMFacnkaw4k4wjRSjn3ip1Uw9TaXuMw==
+  dependencies:
+    "@babel/helper-hoist-variables" "^7.10.4"
+    "@babel/helper-module-transforms" "^7.10.5"
+    "@babel/helper-plugin-utils" "^7.10.4"
+    babel-plugin-dynamic-import-node "^2.3.3"
+
+"@babel/plugin-transform-modules-systemjs@^7.9.6":
   version "7.9.6"
   resolved "https://registry.yarnpkg.com/@babel/plugin-transform-modules-systemjs/-/plugin-transform-modules-systemjs-7.9.6.tgz#207f1461c78a231d5337a92140e52422510d81a4"
   integrity sha512-NW5XQuW3N2tTHim8e1b7qGy7s0kZ2OH3m5octc49K1SdAKGxYxeIx7hiIz05kS1R2R+hOWcsr1eYwcGhrdHsrg==