diff --git a/WORKSPACE b/WORKSPACE
index 1838da3fc4c..aae80311b01 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -43,47 +43,37 @@ remote_config_workspace()
 # Apple and Swift rules.
 http_archive(
     name = "build_bazel_rules_apple",
-    sha256 = "4b90786009fa8df25230442244bad2832ba8d6bc4987f68150a7de59c8827e90",
-    strip_prefix = "rules_apple-0.14.0",
-    urls = ["https://github.com/bazelbuild/rules_apple/archive/0.14.0.tar.gz"],
-)
-http_file(
-    name = "xctestrunner",
-    executable = 1,
-    urls = ["https://github.com/google/xctestrunner/releases/download/0.2.6/ios_test_runner.par"],
-)
-
-http_archive(
-    name = "bazel_skylib",
-    sha256 = "2c62d8cd4ab1e65c08647eb4afe38f51591f43f7f0885e7769832fa137633dcb",
-    strip_prefix = "bazel-skylib-0.7.0",
-    urls = ["https://github.com/bazelbuild/bazel-skylib/archive/0.7.0.tar.gz"],
-)
-
+    sha256 = "8f32e2839fba28d549e1670dbed83606dd339a9f7489118e481814d61738270f",
+    urls = ["https://github.com/bazelbuild/rules_apple/releases/download/0.14.0/rules_apple.0.14.0.tar.gz"],
+)  # https://github.com/bazelbuild/rules_apple/releases
 http_archive(
     name = "build_bazel_apple_support",
-    sha256 = "835663c4bb02f4bf01dce8a2a176df7fa682dbb867d3698ae12258c1628bb8f0",
-    strip_prefix = "apple_support-0.5.0",
-    urls = ["https://github.com/bazelbuild/apple_support/archive/0.5.0.tar.gz"],
-)
-
+    sha256 = "7356dbd44dea71570a929d1d4731e870622151a5f27164d966dda97305f33471",
+    urls = ["https://github.com/bazelbuild/apple_support/releases/download/0.6.0/apple_support.0.6.0.tar.gz"],
+)  # https://github.com/bazelbuild/apple_support/releases
+http_archive(
+    name = "bazel_skylib",
+    sha256 = "2ef429f5d7ce7111263289644d233707dba35e39696377ebab8b0bc701f7818e",
+    urls = ["https://github.com/bazelbuild/bazel-skylib/releases/download/0.8.0/bazel-skylib.0.8.0.tar.gz"],
+)  # https://github.com/bazelbuild/bazel-skylib/releases
 http_archive(
     name = "build_bazel_rules_swift",
-    sha256 = "32d124878cd49775d84f59ba90440c8b23b7c775aec8fec1978f751c76ddee8a",
-    strip_prefix = "rules_swift-0.7.0",
-    urls = ["https://github.com/bazelbuild/rules_swift/archive/0.7.0.tar.gz"],
-)
-
+    sha256 = "31aad005a9c4e56b256125844ad05eb27c88303502d74138186f9083479f93a6",
+    urls = ["https://github.com/bazelbuild/rules_swift/releases/download/0.8.0/rules_swift.0.8.0.tar.gz"],
+)  # https://github.com/bazelbuild/rules_swift/releases
 http_archive(
     name = "com_github_apple_swift_swift_protobuf",
     type = "zip",
-    strip_prefix = "swift-protobuf-1.2.0/",
-    urls = ["https://github.com/apple/swift-protobuf/archive/1.2.0.zip"],
-)
-
-# Use swift_rules_dependencies to fetch the tolchains.
-# Since we defined all the "git_repository" rules above, the following call will
-# skip redefining them.
+    strip_prefix = "swift-protobuf-1.4.0/",
+    urls = ["https://github.com/apple/swift-protobuf/archive/1.4.0.zip"],
+)  # https://github.com/apple/swift-protobuf/releases
+http_file(
+    name = "xctestrunner",
+    executable = 1,
+    urls = ["https://github.com/google/xctestrunner/releases/download/0.2.7/ios_test_runner.par"],
+)  # https://github.com/google/xctestrunner/releases
+# Use `swift_rules_dependencies` to fetch the toolchains. With the
+# `git_repository` rules above, the following call will skip redefining them.
 load("@build_bazel_rules_swift//swift:repositories.bzl", "swift_rules_dependencies")
 swift_rules_dependencies()