diff --git a/src/main/api.zig b/src/main/api.zig
index c8de686..b2b81b0 100644
--- a/src/main/api.zig
+++ b/src/main/api.zig
@@ -84,14 +84,18 @@ pub const RegistrationInfo = struct {
     email: ?[]const u8,
 };
 
+threadlocal var prng: std.rand.DefaultPrng = undefined;
+
+pub fn initThreadPrng(seed: u64) void {
+    prng = std.rand.DefaultPrng.init(seed +% std.Thread.getCurrentId());
+}
+
 pub const ApiServer = struct {
-    prng: std.rand.DefaultPrng,
     db: db.Database,
     internal_alloc: std.mem.Allocator,
 
     pub fn init(alloc: std.mem.Allocator) !ApiServer {
         return ApiServer{
-            .prng = std.rand.DefaultPrng.init(@bitCast(u64, std.time.milliTimestamp())),
             .db = try db.Database.init(),
             .internal_alloc = alloc,
         };
@@ -121,7 +125,7 @@ pub const ApiServer = struct {
     }
 
     pub fn createNoteUser(self: *ApiServer, info: NoteCreate, ctx: ApiContext) !models.Note {
-        const id = Uuid.randV4(self.prng.random());
+        const id = Uuid.randV4(prng.random());
         // TODO: check for dupes
 
         const note = models.Note{
@@ -137,8 +141,8 @@ pub const ApiServer = struct {
     }
 
     pub fn register(self: *ApiServer, info: RegistrationInfo) !models.Actor {
-        const actor_id = Uuid.randV4(self.prng.random());
-        const user_id = Uuid.randV4(self.prng.random());
+        const actor_id = Uuid.randV4(prng.random());
+        const user_id = Uuid.randV4(prng.random());
         // TODO: transaction?
 
         if (try self.db.existsWhereEq(models.LocalUser, .username, info.username)) {
@@ -216,7 +220,7 @@ pub const ApiServer = struct {
         models.Token.HashFn.hash(&token, &hash, .{});
 
         const db_token = models.Token{
-            .id = Uuid.randV4(self.prng.random()),
+            .id = Uuid.randV4(prng.random()),
             .hash = .{ .data = hash },
             .user_id = user.id,
             .issued_at = DateTime.now(),
@@ -242,7 +246,7 @@ pub const ApiServer = struct {
     }
 
     pub fn react(self: *ApiServer, note_id: Uuid, ctx: ApiContext) !void {
-        const id = Uuid.randV4(self.prng.random());
+        const id = Uuid.randV4(prng.random());
         try self.db.insert(models.Reaction, .{ .id = id, .note_id = note_id, .reactor_id = ctx.user_context.user.actor_id.?, .created_at = DateTime.now() });
     }
 
diff --git a/src/main/main.zig b/src/main/main.zig
index 5cda687..32eb90d 100644
--- a/src/main/main.zig
+++ b/src/main/main.zig
@@ -64,5 +64,6 @@ pub const RequestServer = struct {
 pub fn main() anyerror!void {
     var gpa = std.heap.GeneralPurposeAllocator(.{}){};
     var srv = try RequestServer.init(gpa.allocator());
+    api.initThreadPrng(@bitCast(u64, std.time.milliTimestamp()));
     return srv.listenAndRun(std.net.Address.parseIp("0.0.0.0", 8080) catch unreachable);
 }