diff --git a/.bazeliskrc b/.bazeliskrc
new file mode 100644
index 00000000..5af90737
--- /dev/null
+++ b/.bazeliskrc
@@ -0,0 +1,5 @@
+# Set options for Bazelisk, a wrapper for Bazel.
+
+# Set the version of Bazel to use.
+# TODO: #642 -- Update once the JS bazelbuild/rules_closure supports bazel modules.
+USE_BAZEL_VERSION=7.4.1
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 2a69ee31..5b2ef709 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -8,6 +8,7 @@ jobs:
       OLC_PATH: c
     steps:
       - uses: actions/checkout@v2
+      - uses: bazelbuild/setup-bazelisk@v3
       - name: test
         run: bazel test --test_output=all ${OLC_PATH}:all
       - name: check formatting
@@ -20,6 +21,7 @@ jobs:
       OLC_PATH: cpp
     steps:
       - uses: actions/checkout@v2
+      - uses: bazelbuild/setup-bazelisk@v3
       - name: test
         run: bazel test --test_output=all ${OLC_PATH}:all
       - name: check formatting
@@ -70,6 +72,7 @@ jobs:
     name: test-java-${{ matrix.java }}
     steps:
       - uses: actions/checkout@v2
+      - uses: bazelbuild/setup-bazelisk@v3
       - name: Setup java
         uses: actions/setup-java@v2
         with:
@@ -85,6 +88,7 @@ jobs:
       OLC_PATH: js/closure
     steps:
       - uses: actions/checkout@v2
+      - uses: bazelbuild/setup-bazelisk@v3
       - name: test
         run: |
           bazel test ${OLC_PATH}:all
@@ -113,6 +117,7 @@ jobs:
     name: test-python-${{ matrix.python }}
     steps:
       - uses: actions/checkout@v2
+      - uses: bazelbuild/setup-bazelisk@v3
       - name: Set up Python 
         uses: actions/setup-python@v2
         with:
diff --git a/MODULE.bazel b/MODULE.bazel
index a4288ff7..391a38f6 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -8,16 +8,3 @@ bazel_dep(name = "rules_proto", version = "6.0.2")  # Deprecated (moved), TODO f
 bazel_dep(name = "rules_java", version = "7.8.0")
 bazel_dep(name = "bazel_skylib", version = "1.6.1")
 bazel_dep(name = "rules_python", version = "0.33.2")
-
-# External dependency archives
-http_archive = use_repo_rule("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-http_archive(
-    name = "io_bazel_rules_closure",
-    sha256 = "9498e57368efb82b985db1ed426a767cbf1ba0398fd7aed632fc3908654e1b1e",
-    strip_prefix = "rules_closure-0.12.0",
-    urls = [
-        "https://mirror.bazel.build/github.com/bazelbuild/rules_closure/archive/0.12.0.tar.gz",
-        "https://github.com/bazelbuild/rules_closure/archive/0.12.0.tar.gz",
-    ],
-)
\ No newline at end of file
diff --git a/WORKSPACE b/WORKSPACE
new file mode 100644
index 00000000..047e6abe
--- /dev/null
+++ b/WORKSPACE
@@ -0,0 +1,19 @@
+# Workspace configuration for Bazel build tools.
+
+# TODO: #642 -- Remove once io_bazel_rules_closure supports Bazel module configuration.
+workspace(name = "openlocationcode")
+
+load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
+
+http_archive(
+    name = "io_bazel_rules_closure",
+    integrity = "sha256-EvEWnr54L4Yx/LjagaoSuhkviVKHW0oejyDEn8bhAiM=",
+    strip_prefix = "rules_closure-0.14.0",
+    urls = [
+        "https://mirror.bazel.build/github.com/bazelbuild/rules_closure/archive/0.14.0.tar.gz",
+        "https://github.com/bazelbuild/rules_closure/archive/0.14.0.tar.gz",
+    ],
+)
+load("@io_bazel_rules_closure//closure:repositories.bzl", "rules_closure_dependencies", "rules_closure_toolchains")
+rules_closure_dependencies()
+rules_closure_toolchains()
diff --git a/js/closure/BUILD b/js/closure/BUILD
index 74e4183f..c47729d9 100644
--- a/js/closure/BUILD
+++ b/js/closure/BUILD
@@ -19,10 +19,10 @@ closure_js_test(
     entry_points = ["goog:openlocationcode_test"],
     deps = [
         ":openlocationcode_lib",
-        "@io_bazel_rules_closure//closure/library/net:eventtype",
-        "@io_bazel_rules_closure//closure/library/net:xhrio",
-        "@io_bazel_rules_closure//closure/library/testing:asserts",
-        "@io_bazel_rules_closure//closure/library/testing:asynctestcase",
-        "@io_bazel_rules_closure//closure/library/testing:testsuite",
+        "@com_google_javascript_closure_library//closure/goog/net:eventtype",
+        "@com_google_javascript_closure_library//closure/goog/net:xhrio",
+        "@com_google_javascript_closure_library//closure/goog/testing:asserts",
+        "@com_google_javascript_closure_library//closure/goog/testing:asynctestcase",
+        "@com_google_javascript_closure_library//closure/goog/testing:testsuite",
     ],
-)
\ No newline at end of file
+)
diff --git a/js/closure/openlocationcode_test.js b/js/closure/openlocationcode_test.js
index 4a8ef511..a4fa70b8 100644
--- a/js/closure/openlocationcode_test.js
+++ b/js/closure/openlocationcode_test.js
@@ -28,13 +28,13 @@ const testSuite = goog.require('goog.testing.testSuite');
 goog.require('goog.testing.asserts');
 
 const /** @const {string} */ DECODING_TEST_FILE =
-    '/filez/openlocationcode/test_data/decoding.csv';
+    '/filez/_main/test_data/decoding.csv';
 const /** @const {string} */ ENCODING_TEST_FILE =
-    '/filez/openlocationcode/test_data/encoding.csv';
+    '/filez/_main/test_data/encoding.csv';
 const /** @const {string} */ SHORT_CODE_TEST_FILE =
-    '/filez/openlocationcode/test_data/shortCodeTests.csv';
+    '/filez/_main/test_data/shortCodeTests.csv';
 const /** @const {string} */ VALIDITY_TEST_FILE =
-    '/filez/openlocationcode/test_data/validityTests.csv';
+    '/filez/_main/test_data/validityTests.csv';
 
 // Initialise the async test framework.
 const /** @const {!AsyncTestCase} */ asyncTestCase = AsyncTestCase.createAndInstall();