diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index dea5eb5..ebbfd74 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -2,6 +2,12 @@
 # https://docs.github.com/en/free-pro-team@latest/github/administering-a-repository/configuration-options-for-dependency-updates
 version: 2
 updates:
+  # Maintain dependencies for Nix Flake
+  - package-ecosystem: "nix"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+
   # Maintain dependencies for GitHub Actions
   - package-ecosystem: "github-actions"
     directory: "/"