diff --git a/Formula/p/pdm.rb b/Formula/p/pdm.rb
index a1e5534e9885..1157dd0007fd 100644
--- a/Formula/p/pdm.rb
+++ b/Formula/p/pdm.rb
@@ -3,18 +3,18 @@ class Pdm < Formula
 
   desc "Modern Python package and dependency manager supporting the latest PEP standards"
   homepage "https://pdm.fming.dev"
-  url "https://files.pythonhosted.org/packages/32/ff/a903a72a8a1272e5515a54824aee4449e0771613c972b80ee50ae3328401/pdm-2.19.3.tar.gz"
-  sha256 "a9cc7f2078cd3b25ac645ffb5eca9d6b3d5dfcd788eaddfb6083432da71c97c2"
+  url "https://files.pythonhosted.org/packages/bd/3a/8f614b05958aed55a7686ec0daa4f65dd10fe87962d3c8c01044d6fb1629/pdm-2.20.0.tar.gz"
+  sha256 "9b9b44af5f0e369a3166268adf1e2f83a831dfa98000e62e162f1444073fddcb"
   license "MIT"
   head "https://github.com/pdm-project/pdm.git", branch: "main"
 
   bottle do
-    sha256 cellar: :any_skip_relocation, arm64_sequoia: "4b438d2e154300a82161bf7f1ae93e95c8b06bd0f7088ad7b4b6181e7de3d889"
-    sha256 cellar: :any_skip_relocation, arm64_sonoma:  "29150e9110e273dd6af47a08052c857e92051a7dc692a0afb1c4fe13fdb9b87d"
-    sha256 cellar: :any_skip_relocation, arm64_ventura: "125e93da0cd120f1964af20381500dc507383aefa5c06dfbfd6571d3d57334d4"
-    sha256 cellar: :any_skip_relocation, sonoma:        "c1753d4ee1358ce2dddfb6d00b43c3ac86ee718951f7956e9f395ad5afb3c13d"
-    sha256 cellar: :any_skip_relocation, ventura:       "4e6c5f6f0fe719b1f0cf8768f285cadac8412fe13b3710a2899522060ccebf15"
-    sha256 cellar: :any_skip_relocation, x86_64_linux:  "d542a5491f805f79cdbad28eb9b131c552ea7a84fe9da1e69f52c9a76ec3c8ed"
+    sha256 cellar: :any_skip_relocation, arm64_sequoia: "9cada3752b58ab547e68ad56ffc91d28577d5c8decd33b52c028aa12cffbc608"
+    sha256 cellar: :any_skip_relocation, arm64_sonoma:  "39a5b6364452e7099e6ef915af4988dfac4bb5e0fd4b077cc32a3d6c48e6acfe"
+    sha256 cellar: :any_skip_relocation, arm64_ventura: "49219a40ed644505918c4f697274919acaedda36eef07f2d6ba7329dfbc54536"
+    sha256 cellar: :any_skip_relocation, sonoma:        "ca2090fa1ceb575d9dd331baa919a55cfeb0f958d61723678d11ff07f63f37ed"
+    sha256 cellar: :any_skip_relocation, ventura:       "3340f428e7fc999e4a89bc2baa1ce3117b6acaaa72aa40045cb6af711d13325e"
+    sha256 cellar: :any_skip_relocation, x86_64_linux:  "58b532b38b543de59633064c26c5021490907485d9830171ae98534305dc57c9"
   end
 
   depends_on "certifi"
@@ -126,13 +126,13 @@ class Pdm < Formula
   end
 
   resource "resolvelib" do
-    url "https://files.pythonhosted.org/packages/ce/10/f699366ce577423cbc3df3280063099054c23df70856465080798c6ebad6/resolvelib-1.0.1.tar.gz"
-    sha256 "04ce76cbd63fded2078ce224785da6ecd42b9564b1390793f64ddecbe997b309"
+    url "https://files.pythonhosted.org/packages/79/e6/53dc936ddd11353967e5cb7361f537042914745fccfcaa3475505c9ac596/resolvelib-1.1.0.tar.gz"
+    sha256 "b68591ef748f58c1e2a2ac28d0961b3586ae8b25f60b0ba9a5e4f3d87c1d6a79"
   end
 
   resource "rich" do
-    url "https://files.pythonhosted.org/packages/aa/9e/1784d15b057b0075e5136445aaea92d23955aad2c93eaede673718a40d95/rich-13.9.2.tar.gz"
-    sha256 "51a2c62057461aaf7152b4d611168f93a9fc73068f8ded2790f29fe2b5366d0c"
+    url "https://files.pythonhosted.org/packages/d9/e9/cf9ef5245d835065e6673781dbd4b8911d352fb770d56cf0879cf11b7ee1/rich-13.9.3.tar.gz"
+    sha256 "bc1e01b899537598cf02579d2b9f4a415104d3fc439313a7a2c165d76557a08e"
   end
 
   resource "shellingham" do
@@ -156,8 +156,8 @@ class Pdm < Formula
   end
 
   resource "truststore" do
-    url "https://files.pythonhosted.org/packages/df/2e/0e21d4c77bc41c588d3d3c87b8f9b32b2338452718cb261d31cbe55eb4d5/truststore-0.9.2.tar.gz"
-    sha256 "a1dee0d0575ff22d2875476343783a5d64575419974e228f3248772613c3d993"
+    url "https://files.pythonhosted.org/packages/01/a8/cdcf418e067b8ae539012a3f1a51f90b30b26f5e1952a8f60304396babbc/truststore-0.10.0.tar.gz"
+    sha256 "5da347c665714fdfbd46f738c823fe9f0d8775e41ac5fb94f325749091187896"
   end
 
   resource "typing-extensions" do
@@ -171,8 +171,8 @@ class Pdm < Formula
   end
 
   resource "virtualenv" do
-    url "https://files.pythonhosted.org/packages/10/7f/192dd6ab6d91ebea7adf6c030eaf549b1ec0badda9f67a77b633602f66ac/virtualenv-20.27.0.tar.gz"
-    sha256 "2ca56a68ed615b8fe4326d11a0dca5dfbe8fd68510fb6c6349163bed3c15f2b2"
+    url "https://files.pythonhosted.org/packages/8c/b3/7b6a79c5c8cf6d90ea681310e169cf2db2884f4d583d16c6e1d5a75a4e04/virtualenv-20.27.1.tar.gz"
+    sha256 "142c6be10212543b32c6c45d3d3893dff89112cc588b7d0879ae5a1ec03a47ba"
   end
 
   def install
@@ -193,7 +193,7 @@ def install
       build-backend = "pdm.backend"
     TOML
     system bin/"pdm", "add", "requests==2.31.0"
-    assert_match "dependencies = [\n    \"requests==2.31.0\",\n]", (testpath/"pyproject.toml").read
+    assert_match "dependencies = [\"requests==2.31.0\"]", (testpath/"pyproject.toml").read
     assert_predicate testpath/"pdm.lock", :exist?
     assert_match "name = \"urllib3\"", (testpath/"pdm.lock").read
     output = shell_output("#{bin}/pdm run python -c 'import requests;print(requests.__version__)'")