diff --git a/src/colormaps.jl b/src/colormaps.jl
index 8026ca81..b9dbeaa9 100644
--- a/src/colormaps.jl
+++ b/src/colormaps.jl
@@ -224,7 +224,7 @@ function diverging_palette(h1,
     N2 = Int(max(n-N1, 1))
 
     pal1 = sequential_palette(h1, N1+1, w=w, d=d1, c=c, s=s, b=b, wcolor=wcolor, dcolor=dcolor1, logscale=logscale)
-    pal1 = flipdim(pal1, 1)
+    pal1 = reverse(pal1; dims=1)
 
     pal2 = sequential_palette(h2, N2+1, w=w, d=d2, c=c, s=s, b=b, wcolor=wcolor, dcolor=dcolor2, logscale=logscale)
 
diff --git a/test/colormaps.jl b/test/colormaps.jl
new file mode 100644
index 00000000..35e5a6c4
--- /dev/null
+++ b/test/colormaps.jl
@@ -0,0 +1,3 @@
+@testset "Colormaps" begin
+    @test length(colormap("RdBu", 100)) == 100
+end
diff --git a/test/runtests.jl b/test/runtests.jl
index e2ee61ac..67e478a0 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -3,6 +3,7 @@ using Colors, Test
 
 include("algorithms.jl")
 include("conversion.jl")
+include("colormaps.jl")
 include("colordiff.jl")
 include("din99.jl")
 include("utilities.jl")