diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 31cc307..84beddd 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -60,3 +60,17 @@ jobs:
       - uses: julia-actions/julia-runtest@v1
       - uses: julia-actions/julia-processcoverage@v1
       - uses: codecov/codecov-action@v7
+  downgrade-compat:
+    name: Downgrade Compat
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: julia-actions/setup-julia@v2
+      - uses: julia-actions/julia-downgrade-compat@v2
+        with:
+          mode: deps
+      - uses: julia-actions/julia-buildpkg@v1
+      - uses: julia-actions/julia-runtest@v1
+        with:
+          allow_reresolve: false
+          force_latest_compatible_version: false
diff --git a/Project.toml b/Project.toml
index 7bf5abe..5472457 100644
--- a/Project.toml
+++ b/Project.toml
@@ -6,7 +6,7 @@ version = "1.2.2"
 DataStructures = "864edb3b-99cc-5e75-8d2d-829cb0a9cfe8"
 
 [compat]
-DataStructures = "0.9, 0.10, 0.11, 0.12, 0.13, 0.14, 0.15, 0.16, 0.17, 0.18, 0.19"
+DataStructures = "0.10, 0.11, 0.12, 0.13, 0.14, 0.15, 0.16, 0.17, 0.18, 0.19"
 julia = "1"
 
 [extras]
diff --git a/README.md b/README.md
index 718d5ca..2d604f9 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Sorting Algorithms
+# Sorting Algorithms 
 
 [![Build status](https://github.com/JuliaLang/SortingAlgorithms.jl/workflows/CI/badge.svg)](https://github.com/JuliaLang/SortingAlgorithms.jl/actions?query=workflow%3ACI+branch%3Amain)
 [![Coverage Status](https://codecov.io/github/JuliaCollections/SortingAlgorithms.jl/coverage.svg?branch=main)](https://codecov.io/github/JuliaCollections/SortingAlgorithms.jl?branch=main)