diff --git a/Manifest.toml b/Manifest.toml
index 57d95438..28916e3b 100644
--- a/Manifest.toml
+++ b/Manifest.toml
@@ -110,12 +110,6 @@ git-tree-sha1 = "b2cf74f09216cfe3c241e8484178ec0ea941870f"
 uuid = "1a297f60-69ca-5386-bcde-b61e274b549b"
 version = "0.8.1"
 
-[[FiniteDifferences]]
-deps = ["LinearAlgebra", "Printf"]
-git-tree-sha1 = "712a747a0106ad1cca0947e3d1e765cf17dee8b8"
-uuid = "26cc04aa-876d-5657-8c51-4c34ba976000"
-version = "0.9.0"
-
 [[ForwardDiff]]
 deps = ["CommonSubexpressions", "DiffResults", "DiffRules", "NaNMath", "Random", "SpecialFunctions", "StaticArrays"]
 git-tree-sha1 = "4407e7b76999eca2646abdb68203bd4302476168"
@@ -196,9 +190,9 @@ version = "0.9.10"
 
 [[Parsers]]
 deps = ["Dates", "Test"]
-git-tree-sha1 = "c56ecb484f286639f161e712b8311f5ab77e8d32"
+git-tree-sha1 = "a23968e107c0544aca91bfab6f7dd34de1206a54"
 uuid = "69de0a69-1ddd-5017-9359-2bf0b02dc9f0"
-version = "0.3.8"
+version = "0.3.9"
 
 [[Pkg]]
 deps = ["Dates", "LibGit2", "Markdown", "Printf", "REPL", "Random", "SHA", "UUIDs"]
diff --git a/Project.toml b/Project.toml
index f0062bb7..db3e7d24 100644
--- a/Project.toml
+++ b/Project.toml
@@ -5,23 +5,27 @@ version = "0.1.2"
 [deps]
 Combinatorics = "861a8166-3701-5b0c-9a16-15d98fcdc6aa"
 Distributions = "31c24e10-a181-5473-b8eb-7969acd0382f"
-FiniteDifferences = "26cc04aa-876d-5657-8c51-4c34ba976000"
 ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 PDMats = "90014a1f-27ba-587c-ab20-58faa44d9150"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 StatsFuns = "4c63d2b9-4356-54db-8cca-17b64c39e42c"
-Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 Tracker = "9f7883ad-71c0-57eb-9f7f-b5c9e6d3789c"
 Zygote = "e88e6eb3-aa80-5325-afca-941959d7151f"
 
 [compat]
-julia = "1"
-Zygote = "0.4.1"
-Tracker = "0.2.5"
+Combinatorics = "0.7"
+Distributions = "0.21.6"
 ForwardDiff = "0.10.6"
+PDMats = "0.9"
+StatsFuns = "0.8, 0.9"
+Tracker = "0.2.5"
+Zygote = "0.4.1"
+julia = "1"
 
 [extras]
-Combinatorics = "861a8166-3701-5b0c-9a16-15d98fcdc6aa"
 FiniteDifferences = "26cc04aa-876d-5657-8c51-4c34ba976000"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
+
+[targets]
+test = ["Test", "FiniteDifferences"]
\ No newline at end of file