diff --git a/docs/Manifest.toml b/docs/Manifest.toml
index d38c923f..b046c6aa 100644
--- a/docs/Manifest.toml
+++ b/docs/Manifest.toml
@@ -22,27 +22,27 @@ version = "0.5.1"
 
 [[ChainRulesCore]]
 deps = ["Compat", "LinearAlgebra", "SparseArrays"]
-git-tree-sha1 = "42e3c181483fbd2c416087a0a93838803e358358"
+git-tree-sha1 = "5d64be50ea9b43a89b476be773e125cef03c7cd5"
 uuid = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
-version = "0.9.38"
+version = "0.10.1"
 
 [[ColorTypes]]
 deps = ["FixedPointNumbers", "Random"]
-git-tree-sha1 = "32a2b8af383f11cbb65803883837a149d10dfe8a"
+git-tree-sha1 = "024fe24d83e4a5bf5fc80501a314ce0d1aa35597"
 uuid = "3da002f7-5984-5a60-b8a6-cbb66c0b333f"
-version = "0.10.12"
+version = "0.11.0"
 
 [[Colors]]
 deps = ["ColorTypes", "FixedPointNumbers", "Reexport"]
-git-tree-sha1 = "82f4e6ff9f847eca3e5ebc666ea2cd7b48e8b47e"
+git-tree-sha1 = "417b0ed7b8b838aa6ca0a87aadf1bb9eb111ce40"
 uuid = "5ae59095-9a9b-59fe-a467-6f913c188581"
-version = "0.12.7"
+version = "0.12.8"
 
 [[Compat]]
 deps = ["Base64", "Dates", "DelimitedFiles", "Distributed", "InteractiveUtils", "LibGit2", "Libdl", "LinearAlgebra", "Markdown", "Mmap", "Pkg", "Printf", "REPL", "Random", "SHA", "Serialization", "SharedArrays", "Sockets", "SparseArrays", "Statistics", "Test", "UUIDs", "Unicode"]
-git-tree-sha1 = "ac4132ad78082518ec2037ae5770b6e796f7f956"
+git-tree-sha1 = "e4e2b39db08f967cc1360951f01e8a75ec441cab"
 uuid = "34da2185-b29b-5c13-b0c7-acf172513d20"
-version = "3.27.0"
+version = "3.30.0"
 
 [[CompilerSupportLibraries_jll]]
 deps = ["Artifacts", "Libdl"]
@@ -66,9 +66,9 @@ version = "1.6.0"
 
 [[DataFrames]]
 deps = ["Compat", "DataAPI", "Future", "InvertedIndices", "IteratorInterfaceExtensions", "LinearAlgebra", "Markdown", "Missings", "PooledArrays", "PrettyTables", "Printf", "REPL", "Reexport", "SortingAlgorithms", "Statistics", "TableTraits", "Tables", "Unicode"]
-git-tree-sha1 = "56ff5833e5b755d2db654479993e949e73606b64"
+git-tree-sha1 = "66ee4fe515a9294a8836ef18eea7239c6ac3db5e"
 uuid = "a93c6f00-e57d-5684-b7b6-d8193f3e46c0"
-version = "1.0.0"
+version = "1.1.1"
 
 [[DataStructures]]
 deps = ["Compat", "InteractiveUtils", "OrderedCollections"]
@@ -101,9 +101,9 @@ uuid = "8ba89e20-285c-5b6f-9357-94700520ee1b"
 
 [[Distributions]]
 deps = ["FillArrays", "LinearAlgebra", "PDMats", "Printf", "QuadGK", "Random", "SparseArrays", "SpecialFunctions", "Statistics", "StatsBase", "StatsFuns"]
-git-tree-sha1 = "a837fdf80f333415b69684ba8e8ae6ba76de6aaa"
+git-tree-sha1 = "64a3e756c44dcf33bd33e7f500113d9992a02e92"
 uuid = "31c24e10-a181-5473-b8eb-7969acd0382f"
-version = "0.24.18"
+version = "0.25.2"
 
 [[DocStringExtensions]]
 deps = ["LibGit2", "Markdown", "Pkg", "Test"]
@@ -205,10 +205,10 @@ deps = ["Libdl"]
 uuid = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 
 [[LogExpFunctions]]
-deps = ["DocStringExtensions"]
-git-tree-sha1 = "49c5c32deda5999d15378b64ee10f2e87831ab25"
+deps = ["DocStringExtensions", "LinearAlgebra"]
+git-tree-sha1 = "1ba664552f1ef15325e68dc4c05c3ef8c2d5d885"
 uuid = "2ab3a3ac-af41-5b50-aa03-7779005ae688"
-version = "0.2.2"
+version = "0.2.4"
 
 [[Logging]]
 uuid = "56ddb016-857b-54e1-b83d-db4d58db5568"
@@ -235,9 +235,9 @@ version = "2.6.0"
 
 [[Missings]]
 deps = ["DataAPI"]
-git-tree-sha1 = "f8c673ccc215eb50fcadb285f522420e29e69e1c"
+git-tree-sha1 = "4ea90bd5d3985ae1f9a908bd4500ae88921c5ce7"
 uuid = "e1d29d7a-bbdc-5cf2-9ac0-f12de2c33e28"
-version = "0.4.5"
+version = "1.0.0"
 
 [[Mmap]]
 uuid = "a63ad114-7e13-5084-954f-fe012c677804"
@@ -250,14 +250,14 @@ uuid = "ca575930-c2e3-43a9-ace4-1e988b2c1908"
 
 [[OpenSpecFun_jll]]
 deps = ["Artifacts", "CompilerSupportLibraries_jll", "JLLWrappers", "Libdl", "Pkg"]
-git-tree-sha1 = "9db77584158d0ab52307f8c04f8e7c08ca76b5b3"
+git-tree-sha1 = "13652491f6856acfd2db29360e1bbcd4565d04f1"
 uuid = "efe28fd5-8261-553b-a9e1-b2916fc3738e"
-version = "0.5.3+4"
+version = "0.5.5+0"
 
 [[OrderedCollections]]
-git-tree-sha1 = "4fa2ba51070ec13fcc7517db714445b4ab986bdf"
+git-tree-sha1 = "85f8e6578bf1f9ee0d11e7bb1b1456435479d47c"
 uuid = "bac558e1-5e72-5ebc-8fee-abe8a469f55d"
-version = "1.4.0"
+version = "1.4.1"
 
 [[PDMats]]
 deps = ["LinearAlgebra", "SparseArrays", "SuiteSparse"]
@@ -295,15 +295,15 @@ version = "1.2.1"
 
 [[Preferences]]
 deps = ["TOML"]
-git-tree-sha1 = "ea79e4c9077208cd3bc5d29631a26bc0cff78902"
+git-tree-sha1 = "00cfd92944ca9c760982747e9a1d0d5d86ab1e5a"
 uuid = "21216c6a-2e73-6563-6e65-726566657250"
-version = "1.2.1"
+version = "1.2.2"
 
 [[PrettyTables]]
 deps = ["Crayons", "Formatting", "Markdown", "Reexport", "Tables"]
-git-tree-sha1 = "a7162ad93a899333717481f448a235ffafeb5eba"
+git-tree-sha1 = "b60494adf99652d220cdef46f8a32232182cc22d"
 uuid = "08abe8d2-0d0c-5749-adfa-8a2ac140af0d"
-version = "1.0.0"
+version = "1.0.1"
 
 [[Printf]]
 deps = ["Unicode"]
@@ -329,9 +329,9 @@ uuid = "3cdcf5f2-1ef4-517c-9805-6587b60abb01"
 version = "1.1.1"
 
 [[Reexport]]
-git-tree-sha1 = "57d8440b0c7d98fc4f889e478e80f268d534c9d5"
+git-tree-sha1 = "5f6c21241f0f655da3952fd60aa18477cf96c220"
 uuid = "189a3867-3050-52da-a836-e630ba90ab69"
-version = "1.0.0"
+version = "1.1.0"
 
 [[Requires]]
 deps = ["UUIDs"]
@@ -365,36 +365,41 @@ uuid = "1a1011a3-84de-559e-8e89-a11a2f7dc383"
 uuid = "6462fe0b-24de-5631-8697-dd941f90decc"
 
 [[SortingAlgorithms]]
-deps = ["DataStructures", "Random", "Test"]
-git-tree-sha1 = "03f5898c9959f8115e30bc7226ada7d0df554ddd"
+deps = ["DataStructures"]
+git-tree-sha1 = "2ec1962eba973f383239da22e75218565c390a96"
 uuid = "a2af1166-a08f-5f64-846c-94a0d3cef48c"
-version = "0.3.1"
+version = "1.0.0"
 
 [[SparseArrays]]
 deps = ["LinearAlgebra", "Random"]
 uuid = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 
 [[SpecialFunctions]]
-deps = ["ChainRulesCore", "OpenSpecFun_jll"]
-git-tree-sha1 = "5919936c0e92cff40e57d0ddf0ceb667d42e5902"
+deps = ["ChainRulesCore", "LogExpFunctions", "OpenSpecFun_jll"]
+git-tree-sha1 = "a50550fa3164a8c46747e62063b4d774ac1bcf49"
 uuid = "276daf66-3868-5448-9aa4-cd146d93841b"
-version = "1.3.0"
+version = "1.5.1"
 
 [[StaticArrays]]
 deps = ["LinearAlgebra", "Random", "Statistics"]
-git-tree-sha1 = "e8cd1b100d37f5b4cfd2c83f45becf61c762eaf7"
+git-tree-sha1 = "42378d3bab8b4f57aa1ca443821b752850592668"
 uuid = "90137ffa-7385-5640-81b9-e52037218182"
-version = "1.1.1"
+version = "1.2.2"
 
 [[Statistics]]
 deps = ["LinearAlgebra", "SparseArrays"]
 uuid = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 
+[[StatsAPI]]
+git-tree-sha1 = "1958272568dc176a1d881acb797beb909c785510"
+uuid = "82ae8749-77ed-4fe6-ae5f-f523153014b0"
+version = "1.0.0"
+
 [[StatsBase]]
-deps = ["DataAPI", "DataStructures", "LinearAlgebra", "Missings", "Printf", "Random", "SortingAlgorithms", "SparseArrays", "Statistics"]
-git-tree-sha1 = "4bc58880426274277a066de306ef19ecc22a6863"
+deps = ["DataAPI", "DataStructures", "LinearAlgebra", "Missings", "Printf", "Random", "SortingAlgorithms", "SparseArrays", "Statistics", "StatsAPI"]
+git-tree-sha1 = "2f6792d523d7448bbe2fec99eca9218f06cc746d"
 uuid = "2913bbd2-ae8a-5f71-8c99-4fb6c76f3a91"
-version = "0.33.5"
+version = "0.33.8"
 
 [[StatsFuns]]
 deps = ["LogExpFunctions", "Rmath", "SpecialFunctions"]
@@ -418,9 +423,9 @@ version = "1.0.1"
 
 [[Tables]]
 deps = ["DataAPI", "DataValueInterfaces", "IteratorInterfaceExtensions", "LinearAlgebra", "TableTraits", "Test"]
-git-tree-sha1 = "c9d2d262e9a327be1f35844df25fe4561d258dc9"
+git-tree-sha1 = "aa30f8bb63f9ff3f8303a06c604c8500a69aa791"
 uuid = "bd369af6-aec1-5ad0-b16a-f7cc5008161c"
-version = "1.4.2"
+version = "1.4.3"
 
 [[Tar]]
 deps = ["ArgTools", "SHA"]
diff --git a/docs/src/examples/axislike.md b/docs/src/examples/axislike.md
index 82f5e02a..26df4e2f 100644
--- a/docs/src/examples/axislike.md
+++ b/docs/src/examples/axislike.md
@@ -128,3 +128,31 @@ savefigs("smith", ans) # hide
 [\[.pdf\]](smith.pdf), [\[generated .tex\]](smith.tex)
 
 ![](smith.svg)
+
+## Ternary axis
+
+```@example pgf
+@pgf TernaryAxis(
+    {
+        axis_on_top,
+        xlabel="x", ylabel="y", zlabel="z",
+        colorbar
+    },
+    Plot3(
+        {
+            patch,
+            shader="interp",
+            point_meta="\\thisrow{C}"
+        },
+        Table(["x" => [0, 1, 0.5, 0.5, 0, 0],
+               "y" => [0, 0, 0.5, 0.5, 1, 0],
+               "z" => [1, 0, 0, 0, 0, 1],
+               "C" => [100, 0, 0, 0, 20, 100]])
+    )
+)
+savefigs("ternary", ans) # hide
+```
+
+[\[.pdf\]](ternary.pdf), [\[generated .tex\]](ternary.tex)
+
+![](ternary.svg)
diff --git a/docs/src/man/axislike.md b/docs/src/man/axislike.md
index c91c94de..8c5f33bf 100644
--- a/docs/src/man/axislike.md
+++ b/docs/src/man/axislike.md
@@ -168,4 +168,5 @@ julia> print_tex(p)
 SemiLogXAxis
 SemiLogYAxis
 LogLogAxis
+TernaryAxis
 ```
diff --git a/src/PGFPlotsX.jl b/src/PGFPlotsX.jl
index 61b018e4..8f411e15 100644
--- a/src/PGFPlotsX.jl
+++ b/src/PGFPlotsX.jl
@@ -15,7 +15,7 @@ using Requires: @require
 using Tables: Tables
 
 export TikzDocument, TikzPicture
-export Axis, SemiLogXAxis, SemiLogYAxis, LogLogAxis, PolarAxis, SmithChart, GroupPlot
+export Axis, SemiLogXAxis, SemiLogYAxis, LogLogAxis, PolarAxis, SmithChart, GroupPlot, TernaryAxis
 export Plot, PlotInc, Plot3, Plot3Inc, Expression, Coordinate, Coordinates,
     TableData, Table, Graphics, Legend, LegendEntry, VLine, HLine
 export @pgf, pgfsave, print_tex, latexengine, latexengine!, push_preamble!
diff --git a/src/axislike.jl b/src/axislike.jl
index aa236627..c8a262e1 100644
--- a/src/axislike.jl
+++ b/src/axislike.jl
@@ -102,6 +102,13 @@ Smith Chart axes, corresponds to `smithchart` in PGFPlots.
 """
 @define_axislike SmithChart "smithchart"
 
+"""
+    TernaryAxis([options], elements...)
+
+Ternary axes, corresponds to `ternaryaxis` in PGFPlots.
+"""
+@define_axislike TernaryAxis "ternaryaxis"
+
 """
     GroupPlot([options], contents...)
 
diff --git a/src/build.jl b/src/build.jl
index 1059240a..bc59f5de 100644
--- a/src/build.jl
+++ b/src/build.jl
@@ -100,6 +100,7 @@ DEFAULT_PREAMBLE =
         "\\usepgfplotslibrary{smithchart}",
         "\\usepgfplotslibrary{statistics}",
         "\\usepgfplotslibrary{dateplot}",
+        "\\usepgfplotslibrary{ternary}",
     ]
 
 # Collects the full preamble from the different sources, default and custom