diff --git a/Dockerfile.ops b/Dockerfile.ops
index a7b547b..d566c5c 100644
--- a/Dockerfile.ops
+++ b/Dockerfile.ops
@@ -4,6 +4,8 @@ WORKDIR /workspace
 
 COPY package.json ./package.json
 COPY yarn.lock ./yarn.lock
+# Workspace manifests must exist before yarn install so devDeps are installed
+COPY ops-platform/package.json ./ops-platform/package.json
 
 ENV YARN_CACHE_FOLDER=/var/cache/yarn
 
diff --git a/Dockerfile.tenant b/Dockerfile.tenant
index ea33062..e432a10 100644
--- a/Dockerfile.tenant
+++ b/Dockerfile.tenant
@@ -4,6 +4,9 @@ WORKDIR /workspace
 
 COPY package.json ./package.json
 COPY yarn.lock ./yarn.lock
+# Workspace manifests must exist before yarn install so devDeps (e.g. vue-tsc) are installed
+COPY tenant-platform/package.json ./tenant-platform/package.json
+COPY docs-site/package.json ./docs-site/package.json
 
 ENV YARN_CACHE_FOLDER=/var/cache/yarn