diff --git a/test/runtests.jl b/test/runtests.jl
index 55be83b..d1410bf 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -4,6 +4,8 @@ using Test
 using Graphs
 using Distributions
 
+Random.seed!(1);
+
 @testset "CausalTables" begin
     foo1 = DataFrame(L = [1, 2, 3], A = [5, 6, 7])
     foo2 =  (L = [1, 2, 3], A = [5, 6, 7])