diff --git a/Project.toml b/Project.toml
index 6cd3216..ce5cf6b 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "NaNStatistics"
 uuid = "b946abbf-3ea7-4610-9019-9858bfdeaf2d"
 authors = ["C. Brenhin Keller"]
-version = "0.6.8"
+version = "0.6.9"
 
 [deps]
 IfElse = "615f187c-cbe4-4ef1-ba3b-2fcf58d6d173"
diff --git a/src/Sorting/nanmedian.jl b/src/Sorting/nanmedian.jl
index 3cfc94b..7e3825f 100644
--- a/src/Sorting/nanmedian.jl
+++ b/src/Sorting/nanmedian.jl
@@ -95,7 +95,7 @@ end
 
 # Reduce all the dims!
 _nanmedian!(A, ::Tuple{Colon}) = _nanmedian!(A, :)
-function _nanmedian!(A::AbstractArray{T}, ::Colon) where T
+function _nanmedian!(A::AbstractArray{T}, ::Colon) where {T}
     iₗ, iᵤ = firstindex(A), lastindex(A)
     A, iₗ, iᵤ = sortnans!(A, iₗ, iᵤ)
 
diff --git a/src/Sorting/nanpctile.jl b/src/Sorting/nanpctile.jl
index 366221e..97b2c26 100644
--- a/src/Sorting/nanpctile.jl
+++ b/src/Sorting/nanpctile.jl
@@ -164,7 +164,7 @@ end
 
 # Reduce all the dims!
 _nanquantile!(A, q::Real, ::Tuple{Colon}) = _nanquantile!(A, q, :)
-function _nanquantile!(A, q::Real, ::Colon)
+function _nanquantile!(A::AbstractArray{T}, q::Real, ::Colon) where {T}
     iₗ, iᵤ = firstindex(A), lastindex(A)
     A, iₗ, iᵤ = sortnans!(A, iₗ, iᵤ)
 
diff --git a/test/testSorting.jl b/test/testSorting.jl
index f3fbee6..21e2c53 100644
--- a/test/testSorting.jl
+++ b/test/testSorting.jl
@@ -76,6 +76,7 @@
 
     @test nanmedian!(0:10) == 5
     @test nanmedian!(1:10) == 5.5
+    @test nanmedian!(fill(NaN, 10)) === NaN
 
     A = rand(100)
     @test nanmedian!(copy(A)) == median(A)
@@ -110,6 +111,7 @@
     @test nanpctile!(0:10, 100) == 10
     @test nanpctile!(0:10, 13.582) ≈ 1.3582
     @test nanpctile!(collect(1:10), 50) == 5.5
+    @test nanpctile!(fill(NaN, 10), 50) === NaN
 
     A = rand(100)
     @test nanpctile!(copy(A), 50) == median(A)
@@ -144,6 +146,7 @@
     @test nanquantile(0:10, 1.) == 10
     @test nanquantile(0:10, 0.13582) ≈ 1.3582
     @test nanquantile(collect(1:10), 0.5) == 5.5
+    @test nanquantile(fill(NaN,10), 0.5) === NaN
 
     A = rand(100)
     @test nanquantile(A, 0.5) == median(A)