diff --git a/.codecov.yml b/.codecov.yml
new file mode 100644
index 000000000..7a9c0ba9c
--- /dev/null
+++ b/.codecov.yml
@@ -0,0 +1,3 @@
+codecov:
+    notify:
+        after_n_builds: 2
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 991821197..cc48974ec 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -48,7 +48,7 @@ jobs:
         # continue-on-error: ${{ matrix.version == 'nightly' }} # Allow nightly to fail and workflow still count as completed
       - uses: julia-actions/julia-processcoverage@v1
         with:
-          directories: src,lib/ControlSystemsBase/src
+          directories: src,lib/ControlSystemsBase/src,lib/ControlSystemsBase/ext
         if: ${{ matrix.version == '1' }}
       - uses: codecov/codecov-action@v3
         if: ${{ matrix.version == '1' }}
diff --git a/Project.toml b/Project.toml
index b4696f22b..9ceaff71f 100644
--- a/Project.toml
+++ b/Project.toml
@@ -26,7 +26,7 @@ DelayDiffEq = "5.31"
 DiffEqCallbacks = "2.16"
 ForwardDiff = "0.10"
 Hungarian = "0.6, 0.7"
-OrdinaryDiffEq = "5.2, 6.0"
+OrdinaryDiffEq = "~6.60"
 RecipesBase = "1"
 Reexport = "1"
 StaticArrays = "1"
diff --git a/test/runtests.jl b/test/runtests.jl
index a2339c182..820ac896f 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -27,11 +27,11 @@ end
 if GROUP == "All"
     for GROUP in readdir(joinpath(dirname(@__DIR__), "lib")) # Loop over all subpackages
         subpkg_path = joinpath(dirname(@__DIR__), "lib", GROUP)
-        Pkg.test(PackageSpec(name = GROUP, path = subpkg_path))
+        Pkg.test(PackageSpec(name = GROUP, path = subpkg_path), coverage = true)
     end
 elseif GROUP != "ControlSystems"
     # dev_subpkg(GROUP) # Do this if more sub packages are added, don't forget to avoid doing it if GROUP is CSBase
     subpkg_path = joinpath(dirname(@__DIR__), "lib", GROUP)
-    Pkg.test(PackageSpec(name = GROUP, path = subpkg_path))
+    Pkg.test(PackageSpec(name = GROUP, path = subpkg_path), coverage = true)
 end