diff --git a/.github/workflows/jsr.yml b/.github/workflows/jsr.yml
index 117a037..8eb6598 100644
--- a/.github/workflows/jsr.yml
+++ b/.github/workflows/jsr.yml
@@ -20,4 +20,4 @@ jobs:
         run: bun i
 
       - name: Publish package
-        run: bunx --bun jsr publish
\ No newline at end of file
+        run: bunx --bun jsr publish --allow-slow-types
\ No newline at end of file
diff --git a/src/crapto1.ts b/src/crapto1.ts
index 0901ca9..6aa41c8 100644
--- a/src/crapto1.ts
+++ b/src/crapto1.ts
@@ -13,7 +13,7 @@ export class Crapto1 {
     rresp2: number = 0;
     key: bigint = -1n;
 
-    static CraptoData = class{
+    static CraptoData = class {
         uid: number = 0;
         chal: number[] = [];
         rchal: number[] = [];
@@ -256,7 +256,7 @@ export class Crapto1 {
         return ret;
     }
 
-    crypto1_get_lfsr(state: Crypto1State[], t: number, lfsr: bigint) {
+    crypto1_get_lfsr(state: Crypto1State[], t: number, lfsr: bigint): bigint {
         let i: number;
         for (lfsr = 0n, i = 23; i >= 0; --i) {
             lfsr = lfsr << 1n | BigInt(this.bit(state[t].odd, i ^ 3));