diff --git a/scripts/check-version.sh b/scripts/check-version.sh
index 0f588c0..5af0761 100755
--- a/scripts/check-version.sh
+++ b/scripts/check-version.sh
@@ -4,7 +4,7 @@ set -e
 RAW_VERSION=""
 
 if [ -n "${VERSION_FILE-}" ] && [ -f "${VERSION_FILE-}" ]; then
-  RAW_VERSION=$(sed -n 's/^version:[[:space:]]*\([^[:space:]]*\).*/\1/p' "${VERSION_FILE}")
+  RAW_VERSION=$(tr -d "$(printf '\xef\xbb\xbf')" < "${VERSION_FILE}" | sed -n 's/^version:[[:space:]]*\([^[:space:]]*\).*/\1/p')
   if [ -z "${RAW_VERSION}" ]; then
     if echo "${VERSION_FILE}" | grep -q -E '\.json$'; then
       RAW_VERSION=$(jq -r '.version' "${VERSION_FILE}")
@@ -22,7 +22,7 @@ if [ -z "${RAW_VERSION}" ]; then
   elif [ -f pom.xml ]; then
     RAW_VERSION=$(grep -oP '<version>\K[^<]+' pom.xml | head -1)
   elif [ -f Chart.yaml ]; then
-    RAW_VERSION=$(sed -n 's/^version:[[:space:]]*\([^[:space:]]*\).*/\1/p' Chart.yaml)
+    RAW_VERSION=$(tr -d "$(printf '\xef\xbb\xbf')" < Chart.yaml | sed -n 's/^version:[[:space:]]*\([^[:space:]]*\).*/\1/p')
   else
     echo "ERROR: No version source found (VERSION_FILE, VERSION, package.json, pom.xml, Chart.yaml)" >&2
     exit 1
diff --git a/tests/check-version.bats b/tests/check-version.bats
index 028e932..f27f4cd 100644
--- a/tests/check-version.bats
+++ b/tests/check-version.bats
@@ -153,6 +153,21 @@ teardown() {
   [ "$NEXT_VERSION" = "0.3.2" ]
 }
 
+@test "VERSION_FILE=Chart-umbrella.yaml extracts only top-level version" {
+  mock_set_sequence '[{"code": 200, "body": []}]'
+  mock_start
+
+  export VERSION_FILE="$BATS_TEST_DIRNAME/fixtures/check-version/Chart-umbrella.yaml"
+  run bash scripts/check-version.sh
+
+  echo "STATUS=$status"
+  echo "OUTPUT=$output"
+  [ "$status" -eq 0 ]
+  source /tmp/build-ctx/build.env
+  echo "NEXT_VERSION=$NEXT_VERSION"
+  [ "$NEXT_VERSION" = "0.1.0" ]
+}
+
 @test "no version source exits with error" {
   mock_set_sequence '[{"code": 200, "body": []}]'
   mock_start
diff --git a/tests/fixtures/check-version/Chart-umbrella.yaml b/tests/fixtures/check-version/Chart-umbrella.yaml
new file mode 100644
index 0000000..66c873c
--- /dev/null
+++ b/tests/fixtures/check-version/Chart-umbrella.yaml
@@ -0,0 +1,12 @@
+apiVersion: v2
+name: agent-platform
+description: Agent Platform umbrella chart
+type: application
+version: 0.1.0
+dependencies:
+  - name: vikunja
+    version: "0.1.0"
+    repository: oci://registry.example.com
+  - name: langfuse
+    version: "0.2.0"
+    repository: oci://registry.example.com