diff --git a/Dockerfile b/Dockerfile
index 864f1606..6e6ee6f6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -27,7 +27,7 @@ RUN npm run build
 #########################################
 # Package static build files into nginx #
 #########################################
-FROM nginxinc/nginx-unprivileged:stable-alpine@sha256:df0e9edf92b8436ff797fe5a2cbfc66be1df775c113d322ccadf5c7f3100eda8 AS cyberchef
+FROM nginxinc/nginx-unprivileged:stable-alpine@sha256:0a1e718ff1e1a22fc519d0c2e5b6872681f01e37c8a2817ec43ce6e716103929 AS cyberchef
 
 LABEL maintainer="GCHQ <oss@gchq.gov.uk>"