diff --git a/.github/workflows/Downgrade.yml b/.github/workflows/Downgrade.yml
new file mode 100644
index 00000000..bcedf4d6
--- /dev/null
+++ b/.github/workflows/Downgrade.yml
@@ -0,0 +1,28 @@
+name: Downgrade
+env:
+  JULIA_NUM_THREADS: 4
+on:
+  pull_request:
+    branches:
+      - master
+  push:
+    branches:
+      - master
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        version: ['lts']
+    steps:
+      - uses: actions/checkout@v4
+      - uses: julia-actions/setup-julia@v2
+        with:
+          version: ${{ matrix.version }}
+      - uses: julia-actions/julia-downgrade-compat@v1
+        with:
+          skip: Pkg,TOML
+      - uses: julia-actions/julia-buildpkg@v1
+      - uses: julia-actions/julia-runtest@v1
+        with:
+          coverage: false
diff --git a/Project.toml b/Project.toml
index fc1fdc89..5c5d8959 100644
--- a/Project.toml
+++ b/Project.toml
@@ -29,12 +29,15 @@ G4Vis = ["Makie", "Colors", "StaticArrays", "Rotations", "LinearAlgebra", "IGLWr
 
 [compat]
 CSV = "0.10"
-CxxWrap = "0.16"
+Colors = "0.12.9, 0.13"
+CxxWrap = "0.16, 0.17"
 FHist = "0.11"
 Geant4_julia_jll = "0.2"
 GeometryBasics = "0.5"
 IGLWrap_jll = "2.6.0"
-Makie = "0.23"
+Makie = "0.22, 0.23"
+Rotations = "1"
+StaticArrays = "1"
 julia = "1.9"
 
 [extras]