diff --git a/Dockerfile b/Dockerfile
index 04e1140..93e5773 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,7 @@
 FROM python:3.11-slim AS builder
 
 RUN apt-get update \
-    && apt-get install -y --no-install-recommends gcc libffi-dev \
+    && apt-get install -y --no-install-recommends gcc libffi-dev libc6-dev \
     && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /build
@@ -14,7 +14,7 @@ RUN pip install --no-cache-dir --prefix=/install -r requirements.txt
 FROM python:3.11-slim
 
 LABEL maintainer="Bruno Beloeil" \
-      version="1.3.0" \
+      version="1.4.0" \
       description="ObsiGate — lightweight web interface for Obsidian vaults"
 
 WORKDIR /app
diff --git a/backend/requirements.txt b/backend/requirements.txt
index 94f2171..5051cdd 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -6,5 +6,4 @@ python-multipart==0.0.9
 aiofiles==23.2.1
 watchdog>=4.0.0
 argon2-cffi>=23.1.0
-python-jose[cryptography]>=3.3.0
-cryptography>=3.4.0,<42.0.0
+python-jose>=3.3.0