diff --git a/Project.toml b/Project.toml
index 44e624b9..8f31207a 100644
--- a/Project.toml
+++ b/Project.toml
@@ -15,7 +15,6 @@ DistributedArrays = "aaf54ef3-cdf8-58ed-94cc-d582ad619b94"
 Distributions = "31c24e10-a181-5473-b8eb-7969acd0382f"
 FastGaussQuadrature = "442a2c76-b920-505d-bb47-c5924d526838"
 FileIO = "5789e2e9-d7fb-5bc7-8068-2c6fae9b9549"
-Formatting = "59287772-0a20-5a39-b81b-1366585eb4c0"
 Glob = "c27321d9-0574-5035-807b-f59d2c89b15c"
 ImageDistances = "51556ac3-7006-55f5-8cb3-34580c88182d"
 ImageIO = "82e4d734-157c-48bb-816b-45c225c6df19"
@@ -55,7 +54,6 @@ DistributedArrays = "0.6.6"
 Distributions = "0.25.58"
 FastGaussQuadrature = "0.4.9"
 FileIO = "1.10"
-Formatting = "0.4.2"
 Glob = "1.3.1"
 ImageDistances = "0.2.15"
 ImageIO = "0.5.9"
diff --git a/deps/build.jl b/deps/build.jl
index beef189a..b90de945 100644
--- a/deps/build.jl
+++ b/deps/build.jl
@@ -1,7 +1,7 @@
 import Pkg, Conda
 @info "building!"
 Conda.pip_interop(true)
-Conda.pip("install", "matplotlib")
+Conda.pip("install", "matplotlib==3.7.3")
 Conda.add("matplotlib")
 ENV["PYTHON"] = joinpath(Conda.ROOTENV, "bin", "python")
 Pkg.build("PyCall")