diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 8adee80..ab18fdf 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -26,3 +26,5 @@ jobs:
       - uses: julia-actions/cache@v2
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
+        env:
+          GROUP: 'Fast'
diff --git a/test/runtests.jl b/test/runtests.jl
index b38aa9b..f0dfdbc 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -1,5 +1,7 @@
 using SafeTestsets
 
+const GROUP = get(ENV, "GROUP", "Local")
+
 include("datadeps_registration.jl")
 
 # Package Quality
@@ -16,7 +18,10 @@ include("datadeps_registration.jl")
 @safetestset "Constructors" include("test_constructors.jl")
 @safetestset "Convergence" include("test_convergence.jl")
 @safetestset "Fixed Element Masking" include("test_masking.jl")
-@safetestset "Real World Data" include("test_real_world.jl")
+
+if GROUP in ("All", "Local")
+    @safetestset "Real World Data" include("test_real_world.jl")
+end
 
 # Extension Packages
 @safetestset "JuMP Extension" include("test_jump.jl")