diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 69a4feb..cf6133c 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -19,6 +19,7 @@ jobs:
       matrix:
         version:
           - 'min'
+          - 'lts'
           - '1'
           - 'pre'
         os:
diff --git a/.github/workflows/Format.yml b/.github/workflows/Format.yml
new file mode 100644
index 0000000..fe8b9dc
--- /dev/null
+++ b/.github/workflows/Format.yml
@@ -0,0 +1,13 @@
+name: Format suggestions
+on:
+  pull_request:
+    # this argument is not required if you don't use the `suggestion-label` input
+    types: [opened, reopened, synchronize, labeled, unlabeled]
+jobs:
+  code-style:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: julia-actions/julia-format@v4
+        with:
+          version: '1' # Set `version` to '1.0.54' if you need to use JuliaFormatter.jl v1.0.54 (default: '1')
+          suggestion-label: 'format-suggest' # leave this unset or empty to show suggestions for all PRs
diff --git a/.gitignore b/.gitignore
index 96cfdc5..7acdee6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,5 @@
 *.jl.cov
 *.jl.*.cov
 *.jl.mem
-/Manifest.toml
+Manifest.toml
 docs/build/
diff --git a/Project.toml b/Project.toml
index cd2abf5..33973a7 100644
--- a/Project.toml
+++ b/Project.toml
@@ -10,24 +10,8 @@ Markdown = "d6f4376e-aef5-505a-96c1-9c027394607a"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 
 [compat]
-Aqua = "0.8"
-Documenter = "1"
 Graphs = "1.7"
-JuliaFormatter = "1"
 LinearAlgebra = "1.6"
 Markdown = "1.6"
 SparseArrays = "1.6"
-Test = "1.6"
 julia = "1.6"
-
-[extras]
-Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"
-Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
-Graphs = "86223c79-3864-5bf0-83f7-82e725a168b6"
-JuliaFormatter = "98e50ef6-434e-11e9-1051-2b60c6c9e899"
-LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
-SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
-Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
-
-[targets]
-test = ["Aqua", "Documenter", "Graphs", "JuliaFormatter", "LinearAlgebra", "SparseArrays", "Test"]
diff --git a/test/Project.toml b/test/Project.toml
new file mode 100644
index 0000000..2297ec0
--- /dev/null
+++ b/test/Project.toml
@@ -0,0 +1,19 @@
+[deps]
+Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"
+Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
+Graphs = "86223c79-3864-5bf0-83f7-82e725a168b6"
+LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
+SimpleWeightedGraphs = "47aef6b3-ad0c-573a-a1e2-d07658019622"
+SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
+
+[compat]
+Aqua = "0.8"
+Documenter = "1"
+Graphs = "1.7"
+LinearAlgebra = "1.6"
+SparseArrays = "1.6"
+Test = "1.6"
+
+[sources]
+SimpleWeightedGraphs = { path = ".." }
diff --git a/test/runtests.jl b/test/runtests.jl
index 642e407..6cd109d 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -1,7 +1,6 @@
 using Aqua
 using Documenter
 using Graphs
-using JuliaFormatter
 using LinearAlgebra
 using SimpleWeightedGraphs
 using Test
@@ -37,9 +36,6 @@ tests = [
     @testset verbose = true "Code quality (Aqua.jl)" begin
         Aqua.test_all(SimpleWeightedGraphs; ambiguities=false)
     end
-    @testset verbose = false "Code formatting (JuliaFormatter.jl)" begin
-        @test format(SimpleWeightedGraphs; verbose=false, overwrite=false)
-    end
     @testset verbose = false "Doctests (Documenter.jl)" begin
         doctest(SimpleWeightedGraphs)
     end