diff --git a/Cargo.lock b/Cargo.lock
index aaa88132ef450..0b10ae00332b7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2674,6 +2674,15 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "61807f77802ff30975e01f4f071c8ba10c022052f98b3294119f3e615d13e5be"
 
+[[package]]
+name = "ntapi"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e8a3895c6391c39d7fe7ebc444a87eb2991b2a0bc718fdabd071eec617fc68e4"
+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "nu-ansi-term"
 version = "0.50.1"
@@ -2781,12 +2790,31 @@ dependencies = [
  "objc2-encode",
 ]
 
+[[package]]
+name = "objc2-core-foundation"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2a180dd8642fa45cdb7dd721cd4c11b1cadd4929ce112ebd8b9f5803cc79d536"
+dependencies = [
+ "bitflags 2.9.4",
+]
+
 [[package]]
 name = "objc2-encode"
 version = "4.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ef25abbcd74fb2609453eb695bd2f860d389e457f67dc17cafc8b8cbc89d0c33"
 
+[[package]]
+name = "objc2-io-kit"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "33fafba39597d6dc1fb709123dfa8289d39406734be322956a69f0931c73bb15"
+dependencies = [
+ "libc",
+ "objc2-core-foundation",
+]
+
 [[package]]
 name = "object"
 version = "0.36.7"
@@ -4433,13 +4461,17 @@ dependencies = [
 ]
 
 [[package]]
-name = "sys-info"
-version = "0.9.1"
+name = "sysinfo"
+version = "0.37.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b3a0d0aba8bf96a0e1ddfdc352fc53b3df7f39318c71854910c3c4b024ae52c"
+checksum = "16607d5caffd1c07ce073528f9ed972d88db15dd44023fa57142963be3feb11f"
 dependencies = [
- "cc",
  "libc",
+ "memchr",
+ "ntapi",
+ "objc2-core-foundation",
+ "objc2-io-kit",
+ "windows 0.61.3",
 ]
 
 [[package]]
@@ -5686,7 +5718,7 @@ dependencies = [
  "rustls",
  "serde",
  "serde_json",
- "sys-info",
+ "sysinfo",
  "tempfile",
  "thiserror 2.0.17",
  "tokio",
@@ -6397,6 +6429,7 @@ dependencies = [
  "dunce",
  "fs-err",
  "futures",
+ "heck",
  "indexmap",
  "indoc",
  "insta",
@@ -6411,7 +6444,7 @@ dependencies = [
  "schemars",
  "serde",
  "serde_json",
- "sys-info",
+ "sysinfo",
  "target-lexicon",
  "temp-env",
  "tempfile",
diff --git a/Cargo.toml b/Cargo.toml
index c523ecec02574..8404e6e2a5c77 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -171,7 +171,7 @@ sha2 = { version = "0.10.8" }
 smallvec = { version = "1.13.2" }
 spdx = { version = "0.12.0" }
 syn = { version = "2.0.77" }
-sys-info = { version = "0.9.1" }
+sysinfo = { version = "0.37.2" }
 tar = { version = "0.4.43" }
 target-lexicon = { version = "0.13.0" }
 tempfile = { version = "3.14.0" }
diff --git a/crates/uv-client/Cargo.toml b/crates/uv-client/Cargo.toml
index ffeb09151536e..e0742ba969e79 100644
--- a/crates/uv-client/Cargo.toml
+++ b/crates/uv-client/Cargo.toml
@@ -59,7 +59,7 @@ rmp-serde = { workspace = true }
 rustc-hash = { workspace = true }
 serde = { workspace = true }
 serde_json = { workspace = true }
-sys-info = { workspace = true }
+sysinfo = { workspace = true }
 thiserror = { workspace = true }
 tokio = { workspace = true }
 tokio-util = { workspace = true }
diff --git a/crates/uv-client/src/linehaul.rs b/crates/uv-client/src/linehaul.rs
index 4eea4f7550502..79b17305b69a4 100644
--- a/crates/uv-client/src/linehaul.rs
+++ b/crates/uv-client/src/linehaul.rs
@@ -1,4 +1,5 @@
 use std::env;
+use std::io::Read;
 
 use serde::{Deserialize, Serialize};
 use tracing::instrument;
@@ -89,13 +90,13 @@ impl LineHaul {
         // Build Distro as Linehaul expects.
         let distro: Option<Distro> = if cfg!(target_os = "linux") {
             // Gather distribution info from /etc/os-release.
-            sys_info::linux_os_release().ok().map(|info| Distro {
+            Some(Distro {
                 // e.g., Jammy, Focal, etc.
-                id: info.version_codename,
+                id: Self::get_version_codename().ok().flatten(),
                 // e.g., Ubuntu, Fedora, etc.
-                name: info.name,
+                name: sysinfo::System::name(),
                 // e.g., 22.04, etc.
-                version: info.version_id,
+                version: sysinfo::System::os_version(),
                 // e.g., glibc 2.38, musl 1.2
                 libc,
             })
@@ -144,4 +145,27 @@ impl LineHaul {
             ci: looks_like_ci,
         }
     }
+
+    // https://docs.rs/sys-info/latest/src/sys_info/lib.rs.html#473-515
+    fn get_version_codename() -> Result<Option<String>, std::io::Error> {
+        if !cfg!(target_os = "linux") {
+            return Ok(None);
+        }
+
+        let mut s = String::new();
+        fs_err::File::open("/etc/os-release")?.read_to_string(&mut s)?;
+
+        for line in s.lines() {
+            let line = line.trim();
+            if line.starts_with("VERSION_CODENAME=") {
+                let value = line
+                    .strip_prefix("VERSION_CODENAME=")
+                    .unwrap()
+                    .trim_matches('"');
+                return Ok(Some(value.to_string()));
+            }
+        }
+
+        Ok(None)
+    }
 }
diff --git a/crates/uv-client/tests/it/user_agent_version.rs b/crates/uv-client/tests/it/user_agent_version.rs
index 90aecef380aaa..4c3d0751cacc7 100644
--- a/crates/uv-client/tests/it/user_agent_version.rs
+++ b/crates/uv-client/tests/it/user_agent_version.rs
@@ -2,6 +2,9 @@ use std::str::FromStr;
 
 use anyhow::Result;
 use insta::{assert_json_snapshot, assert_snapshot, with_settings};
+use std::io::Read;
+use std::str::FromStr;
+use tokio::net::TcpListener;
 use url::Url;
 
 use uv_cache::Cache;
@@ -12,6 +15,28 @@ use uv_platform_tags::{Arch, Os, Platform};
 use uv_redacted::DisplaySafeUrl;
 use uv_version::version;
 
+// https://docs.rs/sys-info/latest/src/sys_info/lib.rs.html#473-515
+fn get_version_codename() -> Result<Option<String>, std::io::Error> {
+    if !cfg!(target_os = "linux") {
+        return Ok(None);
+    }
+
+    let mut s = String::new();
+    fs_err::File::open("/etc/os-release")?.read_to_string(&mut s)?;
+
+    for line in s.lines() {
+        let line = line.trim();
+        if line.starts_with("VERSION_CODENAME=") {
+            let value = line
+                .strip_prefix("VERSION_CODENAME=")
+                .unwrap()
+                .trim_matches('"');
+            return Ok(Some(value.to_string()));
+        }
+    }
+
+    Ok(None)
+}
 use crate::http_util::start_http_user_agent_server;
 
 #[tokio::test]
@@ -201,12 +226,13 @@ async fn test_user_agent_has_linehaul() -> Result<()> {
         let distro_info = linehaul
             .distro
             .expect("got no distro, but expected one in linehaul");
-        // Gather distribution info from /etc/os-release.
-        let release_info = sys_info::linux_os_release()
-            .expect("got no os release info, but expected one in linux");
-        assert_eq!(distro_info.id, release_info.version_codename);
-        assert_eq!(distro_info.name, release_info.name);
-        assert_eq!(distro_info.version, release_info.version_id);
+        // Gather distribution info using sysinfo and custom parsing
+        let codename = get_version_codename().ok().flatten();
+        let name = sysinfo::System::name();
+        let version = sysinfo::System::os_version();
+        assert_eq!(distro_info.id, codename);
+        assert_eq!(distro_info.name, name);
+        assert_eq!(distro_info.version, version);
     } else if cfg!(target_os = "macos") {
         // We mock the macOS distro
         assert_json_snapshot!(&linehaul.distro, @r###"
diff --git a/crates/uv-python/Cargo.toml b/crates/uv-python/Cargo.toml
index 379328edf5d9f..a6d4889fa6ba4 100644
--- a/crates/uv-python/Cargo.toml
+++ b/crates/uv-python/Cargo.toml
@@ -57,7 +57,7 @@ same-file = { workspace = true }
 schemars = { workspace = true, optional = true }
 serde = { workspace = true, features = ["derive"] }
 serde_json = { workspace = true }
-sys-info = { workspace = true }
+sysinfo = { workspace = true }
 target-lexicon = { workspace = true }
 tempfile = { workspace = true }
 thiserror = { workspace = true }
@@ -66,6 +66,7 @@ tokio-util = { workspace = true, features = ["compat"] }
 tracing = { workspace = true }
 url = { workspace = true }
 which = { workspace = true }
+heck = "0.5.0"
 
 [target.'cfg(target_os = "windows")'.dependencies]
 windows-registry = { workspace = true }
diff --git a/crates/uv-python/src/interpreter.rs b/crates/uv-python/src/interpreter.rs
index 6bde8ddadbc0d..1f4c3cdcf7ca4 100644
--- a/crates/uv-python/src/interpreter.rs
+++ b/crates/uv-python/src/interpreter.rs
@@ -9,9 +9,11 @@ use std::{env, io};
 
 use configparser::ini::Ini;
 use fs_err as fs;
+use heck::ToTitleCase;
 use owo_colors::OwoColorize;
 use same_file::is_same_file;
 use serde::{Deserialize, Serialize};
+use sysinfo::System;
 use thiserror::Error;
 use tracing::{debug, trace, warn};
 
@@ -1095,10 +1097,11 @@ impl InterpreterInfo {
             CacheBucket::Interpreter,
             // Shard interpreter metadata by host architecture, operating system, and version, to
             // invalidate the cache (e.g.) on OS upgrades.
+            // std::env::consts::OS (e.g., "linux", "macos", "windows")
             cache_digest(&(
                 ARCH,
-                sys_info::os_type().unwrap_or_default(),
-                sys_info::os_release().unwrap_or_default(),
+                std::env::consts::OS.to_title_case(),
+                System::kernel_version().unwrap_or_default(),
             )),
             // We use the absolute path for the cache entry to avoid cache collisions for relative
             // paths. But we don't want to query the executable with symbolic links resolved because