diff --git a/.github/workflows/requirments-sync.yml b/.github/workflows/requirments-sync.yml
index 2c38f60f..e9cab15a 100644
--- a/.github/workflows/requirments-sync.yml
+++ b/.github/workflows/requirments-sync.yml
@@ -3,7 +3,7 @@ name: Sync requirements.txt with pyproject.toml
 
 on:
   pull_request:
-    paths: ['pyproject.toml']
+    paths: ['poetry.lock']
     types: [opened, synchronize, reopened]
 
 permissions:
@@ -32,6 +32,9 @@ jobs:
       - name: Install Poetry
         run: pip install poetry
 
+      - name: Install Dependencies via Poetry
+        run: poetry install --only main --no-root
+
       - name: Detect whether requirements.txt has change
         id: detect
         run: |
diff --git a/Makefile b/Makefile
index b4707b08..2c7fc776 100644
--- a/Makefile
+++ b/Makefile
@@ -2,6 +2,10 @@
 DOCKER_COMPOSE_CMD := $(shell if command -v docker-compose > /dev/null; then echo "docker-compose"; else echo "docker compose"; fi)
 
 
+# To regenerate requirements.txt from poetry.lock
+# CAVEAT: Using .PHONY to skip Make's dependency check
+#         of poetry.lock until it is reliable or proven useless
+.PHONY: requirements.txt
 requirements.txt: poetry.lock
 	pip install --user poetry-plugin-export \
 	&& poetry export -f requirements.txt --output requirements.txt \