diff --git a/test/rulesets/Base/mapreduce.jl b/test/rulesets/Base/mapreduce.jl
index 841d9d927..4556ce1e3 100644
--- a/test/rulesets/Base/mapreduce.jl
+++ b/test/rulesets/Base/mapreduce.jl
@@ -295,7 +295,7 @@ end
         @test y1 == [1, 2, 6, 24]
         @test b1([1, 1, 1, 1])[3] isa ChainRulesCore.NotImplemented
         @test b1([1, 1, 1, 1])[4] == [33, 16, 10, 6]
-        @test b1([1, 1, 1, 1])[6] isa Tangent{Some{Int64}}
+        @test b1([1, 1, 1, 1])[6] isa Tangent{<:Some{Int64}}
         @test b1([1, 1, 1, 1])[6].value isa ChainRulesCore.NotImplemented
 
         # if VERSION >= v"1.5"