diff --git a/alpine/Dockerfile b/alpine/Dockerfile
index 72ed81ed..90e5be05 100644
--- a/alpine/Dockerfile
+++ b/alpine/Dockerfile
@@ -1,4 +1,4 @@
-FROM --platform=$BUILDPLATFORM docker.io/library/node:20.7.0-alpine@sha256:a348d50e74df20fa8c572c3abf80b89ae4daf9c312523c49a42997284d13ebac AS builder
+FROM --platform=$BUILDPLATFORM docker.io/library/node:21.7.2-alpine@sha256:ad255c65652e8e99ce0b9d9fc52eee3eae85f445b192f6f9e49a1305c77b2ba6 AS builder
 
 # Build arguments to change source url, branch or tag
 ARG CODIMD_REPOSITORY
@@ -27,7 +27,7 @@ WORKDIR /hedgedoc
 RUN --mount=type=cache,sharing=locked,target=/tmp/.yarn yarn install --immutable
 RUN yarn run build
 
-FROM docker.io/library/node:20.7.0-alpine@sha256:a348d50e74df20fa8c572c3abf80b89ae4daf9c312523c49a42997284d13ebac AS modules-installer
+FROM docker.io/library/node:21.7.2-alpine@sha256:ad255c65652e8e99ce0b9d9fc52eee3eae85f445b192f6f9e49a1305c77b2ba6 AS modules-installer
 WORKDIR /hedgedoc
 
 ENV NODE_ENV=production
@@ -41,7 +41,7 @@ RUN --mount=target=/var/cache/apk,type=cache,sharing=locked \
 
 RUN --mount=type=cache,sharing=locked,target=/tmp/.yarn yarn workspaces focus --production
 
-FROM docker.io/library/node:20.7.0-alpine@sha256:a348d50e74df20fa8c572c3abf80b89ae4daf9c312523c49a42997284d13ebac AS app
+FROM docker.io/library/node:21.7.2-alpine@sha256:ad255c65652e8e99ce0b9d9fc52eee3eae85f445b192f6f9e49a1305c77b2ba6 AS app
 
 LABEL org.opencontainers.image.title='HedgeDoc production image(alpine)'
 LABEL org.opencontainers.image.url='https://hedgedoc.org'
diff --git a/debian/Dockerfile b/debian/Dockerfile
index 5b724e99..c86cc579 100644
--- a/debian/Dockerfile
+++ b/debian/Dockerfile
@@ -1,4 +1,4 @@
-FROM --platform=$BUILDPLATFORM docker.io/library/node:20.7.0-bullseye-slim@sha256:86ed0f70880231adc0fb66c2edbba5de350d8587999e2fe4e1f59c11a4cbb3b4 AS builder
+FROM --platform=$BUILDPLATFORM docker.io/library/node:21.7.2-bullseye-slim@sha256:081ec2052b3e51221f15feba6af7316bbcf0b4179b1354c92bbe47e046144348 AS builder
 
 # Build arguments to change source url, branch or tag
 ARG CODIMD_REPOSITORY
@@ -29,7 +29,7 @@ WORKDIR /hedgedoc
 RUN --mount=type=cache,sharing=locked,target=/tmp/.yarn yarn install --immutable
 RUN yarn run build
 
-FROM docker.io/library/node:20.7.0-bullseye-slim@sha256:86ed0f70880231adc0fb66c2edbba5de350d8587999e2fe4e1f59c11a4cbb3b4 AS modules-installer
+FROM docker.io/library/node:21.7.2-bullseye-slim@sha256:081ec2052b3e51221f15feba6af7316bbcf0b4179b1354c92bbe47e046144348 AS modules-installer
 WORKDIR /hedgedoc
 
 ENV NODE_ENV=production
@@ -44,7 +44,7 @@ RUN --mount=target=/var/lib/apt/lists,type=cache,sharing=locked \
 
 RUN --mount=type=cache,sharing=locked,target=/tmp/.yarn yarn workspaces focus --production
 
-FROM docker.io/library/node:20.7.0-bullseye-slim@sha256:86ed0f70880231adc0fb66c2edbba5de350d8587999e2fe4e1f59c11a4cbb3b4 AS app
+FROM docker.io/library/node:21.7.2-bullseye-slim@sha256:081ec2052b3e51221f15feba6af7316bbcf0b4179b1354c92bbe47e046144348 AS app
 
 LABEL org.opencontainers.image.title='HedgeDoc production image(debian)'
 LABEL org.opencontainers.image.url='https://hedgedoc.org'