diff --git a/backend/services/mpc-service/Dockerfile b/backend/services/mpc-service/Dockerfile
index 22aec8a4..05d02ab6 100644
--- a/backend/services/mpc-service/Dockerfile
+++ b/backend/services/mpc-service/Dockerfile
@@ -30,6 +30,9 @@ FROM node:20-alpine
 
 WORKDIR /app
 
+# Install OpenSSL 1.1 for Prisma
+RUN apk add --no-cache openssl1.1-compat
+
 # Install production dependencies only
 COPY package*.json ./
 RUN npm ci --only=production