diff --git a/lib/std/http/Client.zig b/lib/std/http/Client.zig
index bc0e3ec0ff10c80d090ac1361f7e999684bed60e..542d8301b95ea09145d8c8b7e271fa9864d59235 100644
--- a/lib/std/http/Client.zig
+++ b/lib/std/http/Client.zig
@@ -1310,7 +1310,7 @@ pub fn deinit(client: *Client) void {
 /// Asserts the client has no active connections.
 /// Uses `arena` for a few small allocations that must outlive the client, or
 /// at least until those fields are set to different values.
-pub fn initDefaultProxies(client: *Client, arena: Allocator, environ_map: *std.process.Environ.Map) !void {
+pub fn initDefaultProxies(client: *Client, arena: Allocator, environ_map: *const std.process.Environ.Map) !void {
     const io = client.io;
 
     // Prevent any new connections from being created.
@@ -1334,7 +1334,7 @@ pub fn initDefaultProxies(client: *Client, arena: Allocator, environ_map: *std.p
 
 fn createProxyFromEnvVar(
     arena: Allocator,
-    environ_map: *std.process.Environ.Map,
+    environ_map: *const std.process.Environ.Map,
     env_var_names: []const []const u8,
 ) !?*Proxy {
     const content = for (env_var_names) |name| {
diff --git a/lib/std/zig/system/NativePaths.zig b/lib/std/zig/system/NativePaths.zig
index e289fa75155f375bbd347ba061a440d822b4d3b1..ead8eb2f70ca170cc077c3630d2a2c5f7584e198 100644
--- a/lib/std/zig/system/NativePaths.zig
+++ b/lib/std/zig/system/NativePaths.zig
@@ -18,7 +18,7 @@ pub fn detect(
     arena: Allocator,
     io: Io,
     native_target: *const std.Target,
-    environ_map: *process.Environ.Map,
+    environ_map: *const process.Environ.Map,
 ) !NativePaths {
     var self: NativePaths = .{ .arena = arena };
     var is_nix = false;