diff --git a/services/spelling/.nvmrc b/services/spelling/.nvmrc
index 5ab50cd8e9..d9f880069d 100644
--- a/services/spelling/.nvmrc
+++ b/services/spelling/.nvmrc
@@ -1 +1 @@
-14.18.3
+16.14.2
diff --git a/services/spelling/Dockerfile b/services/spelling/Dockerfile
index 0a946d9ace..3a2268800d 100644
--- a/services/spelling/Dockerfile
+++ b/services/spelling/Dockerfile
@@ -2,7 +2,7 @@
 # Instead run bin/update_build_scripts from
 # https://github.com/sharelatex/sharelatex-dev-environment
 
-FROM gcr.io/overleaf-ops/node:14.18.3 as base
+FROM node:16.14.2 as base
 
 WORKDIR /overleaf/services/spelling
 COPY services/spelling/install_deps.sh /overleaf/services/spelling/
diff --git a/services/spelling/Makefile b/services/spelling/Makefile
index 9ddeeedd76..db6411fa4c 100644
--- a/services/spelling/Makefile
+++ b/services/spelling/Makefile
@@ -30,7 +30,7 @@ HERE=$(shell pwd)
 MONOREPO=$(shell cd ../../ && pwd)
 # Run the linting commands in the scope of the monorepo.
 # Eslint and prettier (plus some configs) are on the root.
-RUN_LINTING = docker run --rm -v $(MONOREPO):$(MONOREPO) -w $(HERE) gcr.io/overleaf-ops/node:14.18.3 npm run --silent
+RUN_LINTING = docker run --rm -v $(MONOREPO):$(MONOREPO) -w $(HERE) node:16.14.2 npm run --silent
 
 format:
 	$(RUN_LINTING) format
diff --git a/services/spelling/buildscript.txt b/services/spelling/buildscript.txt
index 47ddd8a0cb..7043696cda 100644
--- a/services/spelling/buildscript.txt
+++ b/services/spelling/buildscript.txt
@@ -4,7 +4,6 @@ spelling
 --docker-repos=gcr.io/overleaf-ops
 --env-add=
 --env-pass-through=
---node-image=gcr.io/overleaf-ops/node
---node-version=14.18.3
+--node-version=16.14.2
 --public-repo=False
 --script-version=4.1.0
diff --git a/services/spelling/install_deps.sh b/services/spelling/install_deps.sh
index 77dc28693d..3c00ebc92d 100644
--- a/services/spelling/install_deps.sh
+++ b/services/spelling/install_deps.sh
@@ -2,19 +2,14 @@
 
 set -ex
 
-echo 'APT::Default-Release "stretch";' >/etc/apt/apt.conf.d/default-release
+# Prefer Debian packages over Ubuntu packages
+echo 'APT::Default-Release "buster";' >/etc/apt/apt.conf.d/default-release
 
 # The following aspell packages exist in Ubuntu but not Debian:
-# aspell-af, aspell-id, aspell-nr, aspell-ns, aspell-st, aspell-tn, aspell-ts, aspell-xhu
+# aspell-af, aspell-id, aspell-nr, aspell-ns, aspell-st, aspell-tn, aspell-ts, aspell-xh
 echo "deb [arch=amd64] http://archive.ubuntu.com/ubuntu/ focal main universe" > /etc/apt/sources.list.d/focal-amd.list
 echo "deb [arch=arm64] http://ports.ubuntu.com/ubuntu-ports/ focal main universe" > /etc/apt/sources.list.d/focal-ports-arm.list
 apt-key adv --no-tty --keyserver keyserver.ubuntu.com --recv-keys 3B4FE6ACC0B21F32
-# Need to install aspell-no from testing (buster) as broken in stable (stretch).
-echo "deb http://deb.debian.org/debian/ unstable main" > /etc/apt/sources.list.d/unstable.list
 
 apt-get update
-apt-get install -y aspell aspell-en aspell-af aspell-ar aspell-ar-large aspell-bg aspell-br aspell-ca aspell-cs aspell-cy aspell-da aspell-de aspell-de-alt aspell-el aspell-eo aspell-es aspell-et aspell-eu-es aspell-fa aspell-fo aspell-fr aspell-ga aspell-gl-minimos aspell-hr aspell-hsb aspell-id aspell-it aspell-kk aspell-ku aspell-lt aspell-lv aspell-nl aspell-nr aspell-ns  aspell-pa aspell-pl aspell-pt aspell-pt-br aspell-ro aspell-ru aspell-sk aspell-sl aspell-st aspell-sv aspell-tl aspell-tn aspell-ts aspell-xh
-
-printf 'Package: aspell-*\nPin: release a=unstable\nPin-Priority: 1337\n' \
-  > /etc/apt/preferences.d/aspell-from-unstable
-apt-get install aspell-no
+apt-get install -y aspell aspell-en aspell-af aspell-ar aspell-ar-large aspell-bg aspell-br aspell-ca aspell-cs aspell-cy aspell-da aspell-de aspell-de-1901 aspell-el aspell-eo aspell-es aspell-et aspell-eu-es aspell-fa aspell-fo aspell-fr aspell-ga aspell-gl-minimos aspell-hr aspell-hsb aspell-id aspell-it aspell-kk aspell-ku aspell-lt aspell-lv aspell-nl aspell-no aspell-nr aspell-ns  aspell-pa aspell-pl aspell-pt aspell-pt-br aspell-ro aspell-ru aspell-sk aspell-sl aspell-st aspell-sv aspell-tl aspell-tn aspell-ts aspell-xh