diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..0480410
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,26 @@
+# 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: github-actions
+    directory: /
+    commit-message:
+      prefix: ⬆️
+    schedule:
+      interval: weekly
+
+  - package-ecosystem: "conda"
+    directory: "/"
+    commit-message:
+      prefix: ⬆️
+    schedule:
+      interval: weekly
+    ignore:
+      - dependency-name: "jupyter-book"
+        versions: [">=2.0"]
+      - dependency-name: "python"
+        # Python version should be constrained by the anaconda distribution version
+        versions: [">0"]
diff --git a/environment.yml b/environment.yml
index 6ad14be..d380614 100644
--- a/environment.yml
+++ b/environment.yml
@@ -7,11 +7,9 @@ dependencies:
   - pip
   - pip:
     - jupyter-book>=1.0.4post1,<2.0
-    - quantecon-book-theme==0.21.0
+    - quantecon-book-theme==0.22.0
     - sphinx-tojupyter==0.6.0
     - sphinxext-rediraffe==0.3.0
     - sphinx-exercise==1.2.1
     - sphinxcontrib-youtube==1.5.0
-    - sphinx-togglebutton==0.4.5
-
-
+    - sphinx-togglebutton==0.4.5
\ No newline at end of file