diff --git a/proto/def.bzl b/proto/def.bzl
index 80ba9d5546..0aa7120165 100644
--- a/proto/def.bzl
+++ b/proto/def.bzl
@@ -152,7 +152,6 @@ go_proto_library = go_rule(
         ),
         "importpath": attr.string(),
         "importmap": attr.string(),
-        "importpath_aliases": attr.string_list(),  # experimental, undocumented
         "embed": attr.label_list(providers = [GoLibrary]),
         "gc_goopts": attr.string_list(),
         "compiler": attr.label(providers = [GoProtoCompiler]),
diff --git a/tests/core/go_proto_library/BUILD.bazel b/tests/core/go_proto_library/BUILD.bazel
index c0f1597b8a..d55ba5dab6 100644
--- a/tests/core/go_proto_library/BUILD.bazel
+++ b/tests/core/go_proto_library/BUILD.bazel
@@ -117,16 +117,9 @@ go_test(
     deps = [":protos_go_proto"],
 )
 
-go_test(
-    name = "protos_alias_test",
-    srcs = ["protos_alias_test.go"],
-    deps = [":protos_go_proto"],
-)
-
 go_proto_library(
     name = "protos_go_proto",
     importpath = "github.com/bazelbuild/rules_go/tests/core/go_proto_library/protos",
-    importpath_aliases = ["myalias/protos"],
     protos = [
         ":protos_a_proto",
         ":protos_b_proto",
diff --git a/tests/core/go_proto_library/README.rst b/tests/core/go_proto_library/README.rst
index 1a5b039d3b..4caa7ccd2c 100644
--- a/tests/core/go_proto_library/README.rst
+++ b/tests/core/go_proto_library/README.rst
@@ -53,9 +53,3 @@ wkt_wrapper_test
 Checks that most of the well known types in ``//proto/wkt`` are wrappers
 for packages in ``@org_golang_google_protobuf``. The proto types should be
 type aliases.
-
-protos_alias_test
------------------
-
-Checks that packages generated by `go_proto_library` can be imported using one of the strings
-listed in ``importpath_aliases``.
diff --git a/tests/core/go_proto_library/protos_alias_test.go b/tests/core/go_proto_library/protos_alias_test.go
deleted file mode 100644
index 1761276522..0000000000
--- a/tests/core/go_proto_library/protos_alias_test.go
+++ /dev/null
@@ -1,29 +0,0 @@
-/* Copyright 2020 The Bazel Authors. All rights reserved.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package protos_alias_test
-
-import (
-	"myalias/protos" // importing based on the alias import path
-	"testing"
-)
-
-func use(interface{}) {}
-
-func TestProtos(t *testing.T) {
-	// just make sure both types exist
-	use(protos.A{})
-	use(protos.B{})
-}