diff --git a/seahub/Dockerfile b/seahub/Dockerfile
index 61026f3..67d4d8b 100644
--- a/seahub/Dockerfile
+++ b/seahub/Dockerfile
@@ -33,7 +33,7 @@ RUN python3 -m pip install --upgrade pip &&\
 pip3 install --target /pip-deps --timeout=3600 --no-cache-dir  \
 future==1.0.0 \
 pillow==10.4.0 \
-captcha==0.5.0 \
+captcha==0.6.0 \
 pyjwt==2.8.0 \
 mysqlclient==2.2.4 \
 django==4.2.14 \