diff --git a/Dockerfile b/Dockerfile
index 5f89a9985..3a81a4725 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -302,7 +302,7 @@ RUN \
     gosu wekan:wekan /home/wekan/.meteor/meteor -- help; \
     \
     # extract the OpenAPI specification
-    npm install -g api2html && \
+    npm install -g api2html@0.3.0 && \
     mkdir -p /home/wekan/python && \
     chown wekan:wekan --recursive /home/wekan/python && \
     cd /home/wekan/python && \
diff --git a/snapcraft.yaml b/snapcraft.yaml
index 2b4ab48bc..e4b765a50 100644
--- a/snapcraft.yaml
+++ b/snapcraft.yaml
@@ -113,7 +113,7 @@ parts:
             mkdir -p ./public/api
             python3 ./openapi/generate_openapi.py --release $(git describe --tags --abbrev=0) > ./public/api/wekan.yml
             # we temporary need api2html and mkdirp
-            npm install -g api2html
+            npm install -g api2html@0.3.0
             npm install -g mkdirp
             api2html -c ./public/logo-header.png -o ./public/api/wekan.html ./public/api/wekan.yml
             npm uninstall -g mkdirp