diff --git a/app/api/shoot-log/setups/[setupId]/takes/route.ts b/app/api/shoot-log/setups/[setupId]/takes/route.ts
index ffea115..cb5d43d 100644
--- a/app/api/shoot-log/setups/[setupId]/takes/route.ts
+++ b/app/api/shoot-log/setups/[setupId]/takes/route.ts
@@ -6,6 +6,11 @@ function requireRole(role: string) {
   return ["ADMIN", "PRODUCER", "SUPERVISOR"].includes(role);
 }
 
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+function bigIntSafe(obj: any): any {
+  return JSON.parse(JSON.stringify(obj, (_, v) => (typeof v === "bigint" ? Number(v) : v)));
+}
+
 // GET /api/shoot-log/setups/[setupId]/takes
 export async function GET(
   _req: NextRequest,
@@ -24,7 +29,7 @@ export async function GET(
     include: { attachments: { orderBy: { sortOrder: "asc" } } },
   });
 
-  return NextResponse.json({ takes });
+  return NextResponse.json(bigIntSafe({ takes }));
 }
 
 // POST /api/shoot-log/setups/[setupId]/takes
@@ -56,7 +61,7 @@ export async function POST(
     include: { attachments: { orderBy: { sortOrder: "asc" } } },
   });
 
-  return NextResponse.json({ take }, { status: 201 });
+  return NextResponse.json(bigIntSafe({ take }), { status: 201 });
 }
 
 function sanitize(data: Record<string, unknown>) {
diff --git a/app/api/shoot-log/takes/[takeId]/attachments/route.ts b/app/api/shoot-log/takes/[takeId]/attachments/route.ts
index 8ae8997..9cdd260 100644
--- a/app/api/shoot-log/takes/[takeId]/attachments/route.ts
+++ b/app/api/shoot-log/takes/[takeId]/attachments/route.ts
@@ -7,6 +7,11 @@ function requireRole(role: string) {
   return ["ADMIN", "PRODUCER", "SUPERVISOR"].includes(role);
 }
 
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+function bigIntSafe(obj: any): any {
+  return JSON.parse(JSON.stringify(obj, (_, v) => (typeof v === "bigint" ? Number(v) : v)));
+}
+
 // GET /api/shoot-log/takes/[takeId]/attachments
 export async function GET(
   _req: NextRequest,
@@ -24,7 +29,7 @@ export async function GET(
     include: { uploadedBy: { select: { id: true, name: true } } },
   });
 
-  return NextResponse.json({ attachments });
+  return NextResponse.json(bigIntSafe({ attachments }));
 }
 
 // POST /api/shoot-log/takes/[takeId]/attachments
@@ -65,5 +70,5 @@ export async function POST(
     },
   });
 
-  return NextResponse.json({ attachment }, { status: 201 });
+  return NextResponse.json(bigIntSafe({ attachment }), { status: 201 });
 }
diff --git a/app/api/shoot-log/takes/[takeId]/route.ts b/app/api/shoot-log/takes/[takeId]/route.ts
index 701bfef..aed6643 100644
--- a/app/api/shoot-log/takes/[takeId]/route.ts
+++ b/app/api/shoot-log/takes/[takeId]/route.ts
@@ -6,6 +6,12 @@ function requireRole(role: string) {
   return ["ADMIN", "PRODUCER", "SUPERVISOR"].includes(role);
 }
 
+/** Convert BigInt values to Number so JSON.stringify doesn't throw */
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+function bigIntSafe(obj: any): any {
+  return JSON.parse(JSON.stringify(obj, (_, v) => (typeof v === "bigint" ? Number(v) : v)));
+}
+
 function sanitize(data: Record<string, unknown>) {
   const allowed = new Set([
     "scene","shotLabel","unitLabel","cameraLetter","clipName","roll","cameraModel",
@@ -49,7 +55,7 @@ export async function GET(
   });
 
   if (!take) return NextResponse.json({ error: "Not found" }, { status: 404 });
-  return NextResponse.json({ take });
+  return NextResponse.json(bigIntSafe({ take }));
 }
 
 // PATCH /api/shoot-log/takes/[takeId]
@@ -71,7 +77,7 @@ export async function PATCH(
     include: { attachments: { orderBy: { sortOrder: "asc" } } },
   });
 
-  return NextResponse.json({ take });
+  return NextResponse.json(bigIntSafe({ take }));
 }
 
 // DELETE /api/shoot-log/takes/[takeId]