diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 940e42d8fb..081cc317ad 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -51,8 +51,7 @@ jobs:
         env:
           RUBY_TESTOPTS: "-q --tty=no"
           # Remove minitest from TEST_BUNDLED_GEMS_ALLOW_FAILURES if https://github.com/seattlerb/minitest/pull/798 is resolved
-          # rss needs to add workaround for the non rexml environment
-          TEST_BUNDLED_GEMS_ALLOW_FAILURES: "minitest,xmlrpc,rss,rexml"
+          TEST_BUNDLED_GEMS_ALLOW_FAILURES: "minitest,xmlrpc,rexml"
       - uses: k0kubun/action-slack@v2.0.0
         with:
           payload: |
diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index f45c9c6238..090106fd27 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -65,8 +65,7 @@ jobs:
         env:
           RUBY_TESTOPTS: "-q --tty=no"
           # Remove minitest from TEST_BUNDLED_GEMS_ALLOW_FAILURES if https://github.com/seattlerb/minitest/pull/798 is resolved
-          # rss needs to add workaround for the non rexml environment
-          TEST_BUNDLED_GEMS_ALLOW_FAILURES: "minitest,xmlrpc,rss"
+          TEST_BUNDLED_GEMS_ALLOW_FAILURES: "minitest,xmlrpc"
       - uses: k0kubun/action-slack@v2.0.0
         with:
           payload: |
diff --git a/common.mk b/common.mk
index e85ad34c8e..a49347cb05 100644
--- a/common.mk
+++ b/common.mk
@@ -1320,7 +1320,7 @@ test-bundled-gems-fetch: $(PREP)
 
 test-bundled-gems-prepare: test-bundled-gems-precheck test-bundled-gems-fetch
 	$(XRUBY) -C "$(srcdir)" bin/gem install --no-document \
-		--install-dir .bundle --conservative "bundler" "minitest:~> 5" 'test-unit' 'rake' 'hoe' 'yard' 'pry' 'packnga'
+		--install-dir .bundle --conservative "bundler" "minitest:~> 5" 'test-unit' 'rake' 'hoe' 'yard' 'pry' 'packnga' 'rexml'
 
 PREPARE_BUNDLED_GEMS = test-bundled-gems-prepare
 test-bundled-gems: $(TEST_RUNNABLE)-test-bundled-gems