diff --git a/History.md b/History.md
index 2a7f40d8c4..e12ad4541b 100644
--- a/History.md
+++ b/History.md
@@ -10,6 +10,28 @@ N/A
 
 ### Changes
 
+## v1.12.1, TBD
+
+### Breaking changes
+
+N/A
+
+### Migration steps
+
+N/A
+
+### Changes
+
+#### Highlights
+
+- Node.js 12.20.1 [release notes](https://nodejs.org/en/blog/vulnerability/january-2021-security-releases/)
+- Fixes problem on IE because of modern syntax on `dynamic-import` package.
+
+#### Meteor Version Release
+
+* `dynamic-import@0.5.5`
+  - Fixes problem on IE because of modern syntax (arrow function).
+  
 * `meteor-babel@7.10.6`
   - Allows to disable sourceMap generation [#36](https://github.com/meteor/babel/pull/36)
 
diff --git a/meteor b/meteor
index 511289b587..23c684e3b8 100755
--- a/meteor
+++ b/meteor
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-BUNDLE_VERSION=12.18.4.7
+BUNDLE_VERSION=12.20.1.0
 
 # OS Check. Put here because here is where we download the precompiled
 # bundles that are arch specific.
diff --git a/packages/dynamic-import/package.js b/packages/dynamic-import/package.js
index fa74ba9cb2..b66c03ae59 100644
--- a/packages/dynamic-import/package.js
+++ b/packages/dynamic-import/package.js
@@ -1,6 +1,6 @@
 Package.describe({
   name: "dynamic-import",
-  version: "0.5.4",
+  version: "0.5.5-beta1121.0",
   summary: "Runtime support for Meteor 1.5 dynamic import(...) syntax",
   documentation: "README.md"
 });
diff --git a/packages/meteor-tool/package.js b/packages/meteor-tool/package.js
index 443e8fd5e8..12e5301256 100644
--- a/packages/meteor-tool/package.js
+++ b/packages/meteor-tool/package.js
@@ -1,6 +1,6 @@
 Package.describe({
   summary: "The Meteor command-line tool",
-  version: '1.12.0'
+  version: '1.12.1-beta.0'
 });
 
 Package.includeTool();
diff --git a/scripts/admin/meteor-release-experimental.json b/scripts/admin/meteor-release-experimental.json
index 3b36ee668b..c66dd145e8 100644
--- a/scripts/admin/meteor-release-experimental.json
+++ b/scripts/admin/meteor-release-experimental.json
@@ -1,6 +1,6 @@
 {
   "track": "METEOR",
-  "version": "1.12-beta.3",
+  "version": "1.12.1-beta.0",
   "recommended": false,
   "official": false,
   "description": "Meteor"
diff --git a/scripts/build-dev-bundle-common.sh b/scripts/build-dev-bundle-common.sh
index 5feb85aa56..9b1ed26ae6 100644
--- a/scripts/build-dev-bundle-common.sh
+++ b/scripts/build-dev-bundle-common.sh
@@ -5,7 +5,7 @@ set -u
 
 UNAME=$(uname)
 ARCH=$(uname -m)
-NODE_VERSION=12.18.4
+NODE_VERSION=12.20.1
 MONGO_VERSION_64BIT=4.2.8
 MONGO_VERSION_32BIT=3.2.22
 NPM_VERSION=6.14.8