diff --git a/Dockerfile b/Dockerfile
index b857428..209fca4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -30,7 +30,7 @@ RUN \
     /tmp/planka.tar.gz -C \
     /build --strip-components=1 && \
   cd /build/server && \
-  npm install pnpm --global && \
+  npm install pnpm@9 --global && \
   pnpm import && \
   pnpm install --prod && \
   cd /build/client && \
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 15fd0be..9738d4b 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -30,7 +30,7 @@ RUN \
     /tmp/planka.tar.gz -C \
     /build --strip-components=1 && \
   cd /build/server && \
-  npm install pnpm --global && \
+  npm install pnpm@9 --global && \
   pnpm import && \
   pnpm install --prod && \
   cd /build/client && \