diff --git a/Makefile b/Makefile
index a46dd25d3fd..eaa8c63d553 100644
--- a/Makefile
+++ b/Makefile
@@ -147,6 +147,8 @@ lint_gemfile_lock: Gemfile Gemfile.lock ## Lints the Gemfile and its lockfile
 lint_yarn_lock: package.json yarn.lock ## Lints the package.json and its lockfile
 	@yarn install --ignore-scripts
 	@(! git diff --name-only | grep yarn.lock) || (echo "Error: There are uncommitted changes after running 'yarn install'"; exit 1)
+	@yarn yarn-deduplicate
+	@(! git diff --name-only | grep yarn.lock) || (echo "Error: There are duplicate JS dependencies that were removed after running 'yarn yarn-deduplicate'"; exit 1)
 
 lint_lockfiles: lint_gemfile_lock lint_yarn_lock ## Lints to ensure lockfiles are in sync
 
diff --git a/docs/frontend.md b/docs/frontend.md
index 0b2285cd49a..2aef106c123 100644
--- a/docs/frontend.md
+++ b/docs/frontend.md
@@ -125,8 +125,11 @@ yarn add -W webpack
 
 As much as possible, try to use the same version of a dependency when it is used across multiple
 workspace packages. Otherwise, it can inflate the size of the compiled bundles and have a negative
-performance impact on users. Similarly, consider using a tool like [`yarn-deduplicate`](https://github.com/scinos/yarn-deduplicate)
-to deduplicate resolved package versions within the Yarn lockfile.
+performance impact on users.
+
+We use [`yarn-deduplicate`](https://github.com/scinos/yarn-deduplicate)
+to deduplicate resolved package versions within the Yarn lockfile, and enforce it with
+the `make lint_yarn_lock` check.
 
 ### Localization
 
diff --git a/package.json b/package.json
index 643fd7f2833..279d76117b7 100644
--- a/package.json
+++ b/package.json
@@ -91,7 +91,8 @@
     "svgo": "^3.2.0",
     "swr": "^2.0.0",
     "typescript": "^5.2.2",
-    "webpack-dev-server": "^5.0.4"
+    "webpack-dev-server": "^5.0.4",
+    "yarn-deduplicate": "^6.0.2"
   },
   "resolutions": {
     "minimist": "1.2.6",
diff --git a/yarn.lock b/yarn.lock
index 2b002b362bb..24ae052d682 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2051,6 +2051,11 @@
   resolved "https://registry.yarnpkg.com/@xtuc/long/-/long-4.2.2.tgz#d291c6a4e97989b5c61d9acf396ae4fe133a718d"
   integrity sha512-NuHqBY1PB/D8xU6s/thBgOAiAP7HOYDQ32+BFZILJ8ivkUkAHQnWfn6WhL79Owj1qmUnoN/YPhktdIoucipkAQ==
 
+"@yarnpkg/lockfile@^1.1.0":
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/@yarnpkg/lockfile/-/lockfile-1.1.0.tgz#e77a97fbd345b76d83245edcd17d393b1b41fb31"
+  integrity sha512-GpSwvyXOcOOlV70vbnzjj4fW5xW/FdUF6nQEt1ENy7m4ZCczi1+/buVUPAqmGfqznsORNFzUMjctTIp8a9tuCQ==
+
 abab@^2.0.6:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/abab/-/abab-2.0.6.tgz#41b80f2c871d19686216b82309231cfd3cb3d291"
@@ -4881,13 +4886,6 @@ lru-cache@^5.1.1:
   dependencies:
     yallist "^3.0.2"
 
-lru-cache@^6.0.0:
-  version "6.0.0"
-  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-6.0.0.tgz#6d6fe6570ebd96aaf90fcad1dafa3b2566db3a94"
-  integrity sha512-Jo6dJ04CmSjuznwJSS3pUeWmd/H0ffTlkXXgwZi+eq1UCmqQwCh+eLsYOYCwY991i2Fah4h1BEMCx4qThGbsiA==
-  dependencies:
-    yallist "^4.0.0"
-
 lz-string@^1.4.4:
   version "1.4.4"
   resolved "https://registry.yarnpkg.com/lz-string/-/lz-string-1.4.4.tgz#c0d8eaf36059f705796e1e344811cf4c498d3a26"
@@ -6143,12 +6141,10 @@ semver@^6.0.0, semver@^6.1.1, semver@^6.1.2, semver@^6.3.0, semver@^6.3.1:
   resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.1.tgz#556d2ef8689146e46dcea4bfdd095f3434dffcb4"
   integrity sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA==
 
-semver@^7.3.7, semver@^7.5.4:
-  version "7.5.4"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-7.5.4.tgz#483986ec4ed38e1c6c48c34894a9182dbff68a6e"
-  integrity sha512-1bCSESV6Pv+i21Hvpxp3Dx+pSD8lIPt8uVjRrxAUt/nbswYc+tK6Y2btiULjd4+fnq15PX+nqQDC7Oft7WkwcA==
-  dependencies:
-    lru-cache "^6.0.0"
+semver@^7.3.7, semver@^7.5.0, semver@^7.5.4:
+  version "7.6.2"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-7.6.2.tgz#1e3b34759f896e8f14d6134732ce798aeb0c6e13"
+  integrity sha512-FNAIBWCx9qcRhoHcgcJ0gvU7SN1lYU2ZXuSfl04bSC5OpvDHFyJCjdNHomPXxjQlCBU67YW64PzY7/VIEH7F2w==
 
 send@0.18.0:
   version "0.18.0"
@@ -7289,11 +7285,6 @@ yallist@^3.0.2:
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.1.1.tgz#dbb7daf9bfd8bac9ab45ebf602b8cbad0d5d08fd"
   integrity sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==
 
-yallist@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/yallist/-/yallist-4.0.0.tgz#9bb92790d9c0effec63be73519e11a35019a3a72"
-  integrity sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==
-
 yaml@^2.3.4:
   version "2.3.4"
   resolved "https://registry.yarnpkg.com/yaml/-/yaml-2.3.4.tgz#53fc1d514be80aabf386dc6001eb29bf3b7523b2"
@@ -7350,6 +7341,16 @@ yargs@^17.7.2:
     y18n "^5.0.5"
     yargs-parser "^21.1.1"
 
+yarn-deduplicate@^6.0.2:
+  version "6.0.2"
+  resolved "https://registry.yarnpkg.com/yarn-deduplicate/-/yarn-deduplicate-6.0.2.tgz#63498d2d4c3a8567e992a994ce0ab51aa5681f2e"
+  integrity sha512-Efx4XEj82BgbRJe5gvQbZmEO7pU5DgHgxohYZp98/+GwPqdU90RXtzvHirb7hGlde0sQqk5G3J3Woyjai8hVqA==
+  dependencies:
+    "@yarnpkg/lockfile" "^1.1.0"
+    commander "^10.0.1"
+    semver "^7.5.0"
+    tslib "^2.5.0"
+
 yocto-queue@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/yocto-queue/-/yocto-queue-0.1.0.tgz#0294eb3dee05028d31ee1a5fa2c556a6aaf10a1b"