diff --git a/History.md b/History.md
index 38d805a298..e628142818 100644
--- a/History.md
+++ b/History.md
@@ -1,5 +1,11 @@
 ## v.NEXT
 
+* The bundled version of MongoDB used by `meteor run` in development
+  on 64-bit architectures has been updated to 3.4.10. 32-bit architectures
+  will continue to use MongoDB 3.2.x versions since MongoDB is no longer
+  producing 32-bit versions of MongoDB for newer release tracks.
+  [PR #9396](https://github.com/meteor/meteor/pull/9396)
+
 * Meteor's internal `minifier-css` package has been updated to use `postcss`
   for CSS parsing and minifying, instead of the abandoned `css-parse` and
   `css-stringify` packages. Changes made to the `CssTools` API exposed by the
diff --git a/scripts/build-dev-bundle-common.sh b/scripts/build-dev-bundle-common.sh
index 9c65745ac8..9cd59b293a 100644
--- a/scripts/build-dev-bundle-common.sh
+++ b/scripts/build-dev-bundle-common.sh
@@ -6,7 +6,7 @@ set -u
 UNAME=$(uname)
 ARCH=$(uname -m)
 NODE_VERSION=8.8.1
-MONGO_VERSION_64BIT=3.2.15
+MONGO_VERSION_64BIT=3.4.10
 MONGO_VERSION_32BIT=3.2.15
 NPM_VERSION=5.4.2
 
diff --git a/scripts/dev-bundle-tool-package.js b/scripts/dev-bundle-tool-package.js
index fdde521a2d..4f182711dd 100644
--- a/scripts/dev-bundle-tool-package.js
+++ b/scripts/dev-bundle-tool-package.js
@@ -15,7 +15,7 @@ var packageJson = {
     pacote: "https://github.com/meteor/pacote/tarball/4e58fa55e2a0ba7dc75b26ff5273730d98335a85",
     "node-gyp": "3.6.2",
     "node-pre-gyp": "0.6.36",
-    "meteor-babel": "7.0.0-beta.3-1",
+    "meteor-babel": "7.0.0-beta.3-2",
     "meteor-promise": "0.8.6",
     promise: "8.0.1",
     reify: "0.12.3",