diff --git a/Cargo.toml b/Cargo.toml
index 778a8f7df2e..8349bc01ebe 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -41,7 +41,7 @@ hashbrown = { version = ">= 0.14.5, < 0.16", optional = true }
 indexmap = { version = ">= 2.5.0, < 3", optional = true }
 num-bigint = { version = "0.4.2", optional = true }
 num-complex = { version = ">= 0.4.6, < 0.5", optional = true }
-num-rational = {version = "0.4.1", optional = true }
+num-rational = { version = "0.4.1", optional = true }
 rust_decimal = { version = "1.15", default-features = false, optional = true }
 serde = { version = "1.0", optional = true }
 smallvec = { version = "1.0", optional = true }
@@ -63,7 +63,7 @@ rayon = "1.6.1"
 futures = "0.3.28"
 tempfile = "3.12.0"
 static_assertions = "1.1.0"
-uuid = {version = "1.10.0", features = ["v4"] }
+uuid = { version = "1.10.0", features = ["v4"] }
 
 [build-dependencies]
 pyo3-build-config = { path = "pyo3-build-config", version = "=0.23.2", features = ["resolve-config"] }
@@ -150,6 +150,12 @@ no-default-features = true
 features = ["full"]
 rustdoc-args = ["--cfg", "docsrs"]
 
+[package.metadata.cpython]
+version = ">=3.7,<3.14"
+
+[package.metadata.pypy]
+version = ">=3.9,<3.11"
+
 [workspace.lints.clippy]
 checked_conversions = "warn"
 dbg_macro = "warn"
diff --git a/pyo3-ffi/Cargo.toml b/pyo3-ffi/Cargo.toml
index 1a8cd7f09d7..d54462faed5 100644
--- a/pyo3-ffi/Cargo.toml
+++ b/pyo3-ffi/Cargo.toml
@@ -46,3 +46,9 @@ pyo3-build-config = { path = "../pyo3-build-config", version = "=0.23.2", featur
 
 [lints]
 workspace = true
+
+[package.metadata.cpython]
+version = ">=3.7,<3.14"
+
+[package.metadata.pypy]
+version = ">=3.9,<3.11"