diff --git a/rules/scala/workspace.bzl b/rules/scala/workspace.bzl
index b7f6efa..2130ae3 100644
--- a/rules/scala/workspace.bzl
+++ b/rules/scala/workspace.bzl
@@ -24,6 +24,12 @@ filegroup(
 )
 """
 
+_ANNEX_DEPS_ARTIFACTS = [
+    "com.github.scopt:scopt_3:4.1.0",
+    "org.scala-sbt:librarymanagement-core_3:2.0.0-M2",
+    "org.scala-sbt:librarymanagement-coursier_3:2.0.0-alpha8",
+]
+
 repositories = [
     "https://repo1.maven.org/maven2",
     "https://repo.maven.apache.org/maven2",
@@ -36,6 +42,14 @@ sbt_version = "2.0.0-M2"
 zinc_version = "2.0.0-alpha14"
 
 def scala_repositories():
+    maven_install(
+        name = "annex_deps",
+        artifacts = _ANNEX_DEPS_ARTIFACTS,
+        fetch_sources = True,
+        maven_install_json = "@rules_scala3//:annex_deps_install.json",
+        repositories = repositories,
+    )
+
     http_archive(
         name = "compiler_bridge_2_13",
         build_file_content = _SRC_FILEGROUP_BUILD_FILE_CONTENT,