diff --git a/.github/workflows/CompatHelper.yml b/.github/workflows/CompatHelper.yml
new file mode 100644
index 0000000000..ce8d353bff
--- /dev/null
+++ b/.github/workflows/CompatHelper.yml
@@ -0,0 +1,16 @@
+name: CompatHelper
+
+on:
+  schedule:
+    - cron: '00 00 * * *'
+
+jobs:
+  CompatHelper:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Pkg.add("CompatHelper")
+        run: julia -e 'using Pkg; Pkg.add("CompatHelper")'
+      - name: CompatHelper.main()
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: julia -e 'using CompatHelper; CompatHelper.main()'
diff --git a/Project.toml b/Project.toml
index fa42ff9da3..bda4a1c7f4 100644
--- a/Project.toml
+++ b/Project.toml
@@ -15,7 +15,11 @@ TimerOutputs = "a759f4b9-e2f1-59dc-863e-4aeb61b1ea8f"
 
 [compat]
 julia = "1.4"
+HDF5 = "0.13.1"
+KrylovKit = "0.4.2"
 NDTensors = "0.1.2"
+StaticArrays = "0.12.3"
+TimerOutputs = "0.5.5"
 
 [extras]
 Combinatorics = "861a8166-3701-5b0c-9a16-15d98fcdc6aa"