diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 02ee861..75bc9cd 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -1,11 +1,10 @@
-# To get started with Dependabot version updates, you'll need to specify which
-# package ecosystems to update and where the package manifests are located.
-# Please see the documentation for all configuration options:
-# https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
-
 version: 2
 updates:
-  - package-ecosystem: "bundler" # See documentation for possible values
-    directory: "/" # Location of package manifests
+  - package-ecosystem: "github-actions"
+    directory: "/"
     schedule:
-      interval: "daily"
+      interval: "weekly"
+  - package-ecosystem: "bundler"
+    directory: "/"
+    schedule:
+      interval: "weekly"
diff --git a/pycall.gemspec b/pycall.gemspec
index a048619..129a45c 100644
--- a/pycall.gemspec
+++ b/pycall.gemspec
@@ -1,17 +1,10 @@
 # coding: utf-8
-lib = File.expand_path('../lib', __FILE__)
-$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
-require 'pycall/version'
+
+require_relative 'lib/pycall/version'
 
 Gem::Specification.new do |spec|
   spec.name          = "pycall"
-  version_components = [
-    PyCall::Version::MAJOR.to_s,
-    PyCall::Version::MINOR.to_s,
-    PyCall::Version::MICRO.to_s,
-    PyCall::Version::TAG,
-  ]
-  spec.version       = version_components.compact.join(".")
+  spec.version       = PyCall::VERSION
   spec.authors       = ["Kenta Murata"]
   spec.email         = ["mrkn@mrkn.jp"]