diff --git a/changelog.d/5-internal/add-python3-dev-dependency b/changelog.d/5-internal/add-python3-dev-dependency
new file mode 100644
index 0000000000..b48070242c
--- /dev/null
+++ b/changelog.d/5-internal/add-python3-dev-dependency
@@ -0,0 +1 @@
+Add python3 to nix development environment. It's needed by hack/bin/serve-charts.sh .
diff --git a/dev-packages.nix b/dev-packages.nix
index 623a829e0a..1b3902b675 100644
--- a/dev-packages.nix
+++ b/dev-packages.nix
@@ -177,6 +177,7 @@ in
   pkgs.gnumake
   pkgs.gnused
   (pkgs.haskell-language-server.override { supportedGhcVersions = [ "8107" ]; })
+  pkgs.python3
   pkgs.jq
   pkgs.niv
   pkgs.ormolu