diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index e805cc327..645752224 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,4 +1,4 @@
 {
   "gapic": "0.1.0",
-  "gapic-common": "0.21.0"
+  "gapic-common": "0.20.0"
 }
diff --git a/gapic-common/.toys.rb b/gapic-common/.toys.rb
index 3fda49b8b..0b16a3f1f 100644
--- a/gapic-common/.toys.rb
+++ b/gapic-common/.toys.rb
@@ -28,6 +28,11 @@
   t.fail_on_undocumented_objects = false # TODO: Fix so this can be enabled
   t.bundler = true
 end
+alias_tool :yard, :yardoc
+
+expand :gem_build
+
+expand :gem_build, name: "install", install_gem: true
 
 tool "ci" do
   include :exec, e: true
diff --git a/gapic-common/CHANGELOG.md b/gapic-common/CHANGELOG.md
index 7950aa3bf..6a6dc2721 100644
--- a/gapic-common/CHANGELOG.md
+++ b/gapic-common/CHANGELOG.md
@@ -1,12 +1,5 @@
 # Release History
 
-### 0.21.0 (2023-12-12)
-
-#### Features
-
-* Drop support for Ruby 2.6 ([#1009](https://github.com/googleapis/gapic-generator-ruby/issues/1009)) 
-* Honor universe domain in stubs ([#1008](https://github.com/googleapis/gapic-generator-ruby/issues/1008)) 
-
 ### 0.20.0 (2023-08-31)
 
 #### Features
diff --git a/gapic-common/lib/gapic/common/version.rb b/gapic-common/lib/gapic/common/version.rb
index 0a5172bc3..37862432c 100644
--- a/gapic-common/lib/gapic/common/version.rb
+++ b/gapic-common/lib/gapic/common/version.rb
@@ -14,6 +14,6 @@
 
 module Gapic
   module Common
-    VERSION = "0.21.0".freeze
+    VERSION = "0.20.0".freeze
   end
 end
diff --git a/gapic/.toys.rb b/gapic/.toys.rb
index c2fe4f197..7ee06f9a4 100644
--- a/gapic/.toys.rb
+++ b/gapic/.toys.rb
@@ -28,6 +28,11 @@
   t.fail_on_undocumented_objects = true
   t.bundler = true
 end
+alias_tool :yard, :yardoc
+
+expand :gem_build
+
+expand :gem_build, name: "install", install_gem: true
 
 tool "ci" do
   include :exec, e: true