diff --git a/check-vulnerabilities/action.yml b/check-vulnerabilities/action.yml
index c0c9e366c..1104f5b07 100644
--- a/check-vulnerabilities/action.yml
+++ b/check-vulnerabilities/action.yml
@@ -377,7 +377,11 @@ runs:
         if [[ "${BUILD_BACKEND}" == 'poetry' ]]; then
           poetry install --extras "${extra_targets}"
         elif [[ "${BUILD_BACKEND}" == 'uv' ]]; then
-          uv pip install ."${extra_targets}"
+          if [ -f "uv.lock" ]; then
+            uv sync --extra "${extra_targets}"
+          else
+            uv pip install ."${extra_targets}"
+          fi
         else
           python -m pip install ."${extra_targets}"
         fi
diff --git a/code-style/action.yml b/code-style/action.yml
index 58fdc4033..3961eb94c 100644
--- a/code-style/action.yml
+++ b/code-style/action.yml
@@ -250,7 +250,11 @@ runs:
         if [[ "${BUILD_BACKEND}" == 'poetry' ]]; then
           poetry install
         elif [[ "${BUILD_BACKEND}" == 'uv' ]]; then
-          uv pip install .
+          if [ -f "uv.lock" ]; then
+            uv sync
+          else
+            uv pip install .
+          fi
         else
           python -m pip install .
         fi
diff --git a/doc/source/changelog/1088.fixed.md b/doc/source/changelog/1088.fixed.md
new file mode 100644
index 000000000..0b442a993
--- /dev/null
+++ b/doc/source/changelog/1088.fixed.md
@@ -0,0 +1 @@
+Use uv sync if lock file is present