diff --git a/Project.toml b/Project.toml
index 9cf6ab670..5ef530989 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,6 +1,6 @@
 name = "ChainRules"
 uuid = "082447d4-558c-5d27-93f4-14fc19e9eca2"
-version = "1.74.4"
+version = "1.74.5"
 
 [deps]
 Adapt = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"
diff --git a/src/rulesets/Base/nondiff.jl b/src/rulesets/Base/nondiff.jl
index 7fcf13cd5..8fa7bce0a 100644
--- a/src/rulesets/Base/nondiff.jl
+++ b/src/rulesets/Base/nondiff.jl
@@ -81,6 +81,7 @@
 @non_differentiable sum(::AbstractArray{Bool})
 @non_differentiable sum(::Any, ::AbstractArray{Bool})
 @non_differentiable sum(::typeof(abs2), ::AbstractArray{Bool})  # avoids an ambiguity
+@non_differentiable sum(::NTuple{<:Any,Bool})
 @non_differentiable vcat(::AbstractArray{Bool}...)
 @non_differentiable vec(::AbstractArray{Bool})
 @non_differentiable Vector(::AbstractArray{Bool})
diff --git a/test/rulesets/Base/mapreduce.jl b/test/rulesets/Base/mapreduce.jl
index 6c18b0aa2..033e9f19e 100644
--- a/test/rulesets/Base/mapreduce.jl
+++ b/test/rulesets/Base/mapreduce.jl
@@ -12,6 +12,9 @@ struct SumRuleConfig <: RuleConfig{Union{HasReverseMode}} end
         test_rrule(sum, Tuple(rand(5)))
         test_rrule(sum, (1.2, 3.4 + 5im))
         test_rrule(sum, (rand(2)', rand(1,2)))
+
+        # Boolean -- via @non_differentiable
+        test_rrule(sum, (true, false, true))
     end
     @testset "sum(x; dims=$dims)" for dims in (:, 2, (1,3))
         # Forward