diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index ee5c90f0..74a110d9 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -10,39 +10,35 @@ on:
       - master
     paths-ignore:
       - 'docs/**'
+  schedule:
+      - cron: '47 20 * * 0'
 jobs:
   test:
-    name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }} - ${{ github.event_name }}
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
+        group:
+          - Core
         version:
           - '1'
-#          - 'nightly'
         os:
           - ubuntu-latest
-        arch:
-          - x64
+          - macos-latest
+          - windows-latest
     steps:
-      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
-      - uses: julia-actions/setup-julia@f40c4b69330df1d22e7590c12e76dc2f9c66e0bc
+      - uses: actions/checkout@v4
+      - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
-          arch: ${{ matrix.arch }}
-      - uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84
-        env:
-          cache-name: cache-artifacts
+      - uses: julia-actions/cache@v1
         with:
-          path: ~/.julia/artifacts
-          key: ${{ runner.os }}-test-${{ env.cache-name }}-${{ hashFiles('**/Project.toml') }}
-          restore-keys: |
-            ${{ runner.os }}-test-${{ env.cache-name }}-
-            ${{ runner.os }}-test-
-            ${{ runner.os }}-
-      - uses: julia-actions/julia-buildpkg@72ddd0fcdc760e6d2ef7ef2bbb11ae5032b671a8
-      - uses: julia-actions/julia-runtest@79a7e100883947123f8263c5f06e6c0ea3eb972f
-      - uses: julia-actions/julia-processcoverage@03114f09f119417c3242a9fb6e0b722676aedf38
-      - uses: codecov/codecov-action@eaaf4bedf32dbdc6b720b63067d99c4d77d6047d
+          token: ${{ secrets.GITHUB_TOKEN }}
+      - uses: julia-actions/julia-buildpkg@v1
+      - uses: julia-actions/julia-runtest@v1
+        with:
+          depwarn: error
+      - uses: julia-actions/julia-processcoverage@v1
+      - uses: codecov/codecov-action@v3
         with:
           file: lcov.info
\ No newline at end of file
diff --git a/.github/workflows/Documentation.yml b/.github/workflows/Documentation.yml
index d8aa2667..860cd3c5 100644
--- a/.github/workflows/Documentation.yml
+++ b/.github/workflows/Documentation.yml
@@ -5,7 +5,8 @@ on:
       - master
     tags: '*'
   pull_request:
-
+  schedule:
+    - cron: '47 20 * * 0'
 jobs:
   build:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/Downgrade.yml b/.github/workflows/Downgrade.yml
index 01ff8cad..cbfc1503 100644
--- a/.github/workflows/Downgrade.yml
+++ b/.github/workflows/Downgrade.yml
@@ -10,20 +10,32 @@ on:
       - master
     paths-ignore:
       - 'docs/**'
+  schedule:
+    - cron: '47 20 * * 0'
 jobs:
   test:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
     strategy:
+      fail-fast: false
       matrix:
-        version: ['1']
+        group:
+          - Core
+        version:
+          - '1'
+        os:
+          - ubuntu-latest
+          - macos-latest
+          - windows-latest
     steps:
       - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
       - uses: cjdoris/julia-downgrade-compat-action@v1
-#        if: ${{ matrix.version == '1.6' }}
         with:
           skip: Pkg,TOML
+      - uses: julia-actions/cache@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
\ No newline at end of file
diff --git a/Project.toml b/Project.toml
index 6df2909f..67132eab 100644
--- a/Project.toml
+++ b/Project.toml
@@ -25,7 +25,7 @@ DataInterpolationsSymbolicsExt = "Symbolics"
 Aqua = "0.8"
 ChainRulesCore = "1"
 FiniteDifferences = "0.12.31"
-ForwardDiff = "0.10.13"
+ForwardDiff = "0.10.19"
 LinearAlgebra = "1.10"
 Optim = "1.6"
 PrettyTables = "2"
@@ -33,8 +33,9 @@ QuadGK = "2.9.1"
 RecipesBase = "1.1"
 Reexport = "1"
 RegularizationTools = "0.6"
+SafeTestsets = "0.1"
 StableRNGs = "1"
-Symbolics = "4"
+Symbolics = "5.1"
 Test = "1"
 julia = "1.10"
 
@@ -46,9 +47,10 @@ ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
 Optim = "429524aa-4258-5aef-a3af-852621145aeb"
 QuadGK = "1fd47b50-473d-5c70-9696-f719f8f3bcdc"
 RegularizationTools = "29dad682-9a27-4bc3-9c72-016788665182"
+SafeTestsets = "1bc83da4-3b8d-516f-aca4-4fe02f6d838f"
 StableRNGs = "860ef19b-820b-49d6-a774-d7a799459cd3"
 Symbolics = "0c5d862f-8b57-4792-8d23-62f2024744c7"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [targets]
-test = ["Aqua", "ChainRulesCore", "Optim", "RegularizationTools", "Test", "StableRNGs", "FiniteDifferences", "QuadGK", "ForwardDiff", "Symbolics"]
+test = ["Aqua", "SafeTestsets", "ChainRulesCore", "Optim", "RegularizationTools", "Test", "StableRNGs", "FiniteDifferences", "QuadGK", "ForwardDiff", "Symbolics"]
diff --git a/test/interface.jl b/test/interface.jl
index ad73c31d..3b17a1ca 100644
--- a/test/interface.jl
+++ b/test/interface.jl
@@ -1,3 +1,4 @@
+using DataInterpolations
 u = 2.0collect(1:10)
 t = 1.0collect(1:10)
 A = LinearInterpolation(u, t)
diff --git a/test/interpolation_tests.jl b/test/interpolation_tests.jl
index c8416e14..9fbf153c 100644
--- a/test/interpolation_tests.jl
+++ b/test/interpolation_tests.jl
@@ -1,4 +1,4 @@
-using DataInterpolations, Test
+using DataInterpolations
 using StableRNGs
 using Optim, ForwardDiff
 
diff --git a/test/online_tests.jl b/test/online_tests.jl
index a7da6d86..6103cfc4 100644
--- a/test/online_tests.jl
+++ b/test/online_tests.jl
@@ -1,4 +1,4 @@
-using DataInterpolations, Test
+using DataInterpolations
 
 t = [1, 2, 3]
 u = [0, 1, 0]
diff --git a/test/regularization.jl b/test/regularization.jl
index 39d8e92c..6e083fa0 100644
--- a/test/regularization.jl
+++ b/test/regularization.jl
@@ -1,3 +1,4 @@
+using DataInterpolations
 import StableRNGs: StableRNG
 using RegularizationTools
 
diff --git a/test/runtests.jl b/test/runtests.jl
index c46409f8..a7bac9e3 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -1,28 +1,10 @@
-using DataInterpolations, Test
+using SafeTestsets
 
-@testset "DataInterpolations" begin
-    @testset "Quality Assurance" begin
-        include("qa.jl")
-    end
-    @testset "Interface" begin
-        include("interface.jl")
-    end
-    @testset "Interpolation Tests" begin
-        include("interpolation_tests.jl")
-    end
-    @testset "Derivative Tests" begin
-        include("derivative_tests.jl")
-    end
-    @testset "Integral Tests" begin
-        include("integral_tests.jl")
-    end
-    @testset "Online Tests" begin
-        include("online_tests.jl")
-    end
-    @testset "Regularization Smoothing" begin
-        include("regularization.jl")
-    end
-    @testset "Show methods" begin
-        include("show.jl")
-    end
-end
+@safetestset "Quality Assurance" include("qa.jl")
+@safetestset "Interface" include("interface.jl")
+@safetestset "Interpolation Tests" include("interpolation_tests.jl")
+@safetestset "Derivative Tests" include("derivative_tests.jl")
+@safetestset "Integral Tests" include("integral_tests.jl")
+@safetestset "Online Tests" include("online_tests.jl")
+@safetestset "Regularization Smoothing" include("regularization.jl")
+@safetestset "Show methods" include("show.jl")
diff --git a/test/show.jl b/test/show.jl
index 2dcbfb96..47bee3e7 100644
--- a/test/show.jl
+++ b/test/show.jl
@@ -1,3 +1,4 @@
+using DataInterpolations
 using Optim, StableRNGs
 using RegularizationTools