diff --git a/hack/observability/.gitignore b/hack/observability/.gitignore
index 1840e9c7b300..5ed0fc64d9ed 100644
--- a/hack/observability/.gitignore
+++ b/hack/observability/.gitignore
@@ -1,2 +1,2 @@
 # ignore cached helm charts
-charts
+.charts
diff --git a/hack/observability/grafana/chart/kustomization.yaml b/hack/observability/grafana/chart/kustomization.yaml
index 61baf1084c2d..98a5b13823bd 100644
--- a/hack/observability/grafana/chart/kustomization.yaml
+++ b/hack/observability/grafana/chart/kustomization.yaml
@@ -5,3 +5,9 @@ helmCharts:
     namespace: observability
     valuesFile: values.yaml
     version: 6.56.5
+
+helmGlobals:
+    # Store chart in ".charts" folder instead of "charts".
+    # Otherwise "go mod tidy" picks up dependencies of go files contained in the Helm Chart.
+    # "go mod tidy" ignores folders that begin with ".": https://pkg.go.dev/cmd/go#hdr-Package_lists_and_patterns.
+    chartHome: .charts
diff --git a/hack/observability/kube-state-metrics/chart/kustomization.yaml b/hack/observability/kube-state-metrics/chart/kustomization.yaml
index 52ec0dfd377c..76fa30891803 100644
--- a/hack/observability/kube-state-metrics/chart/kustomization.yaml
+++ b/hack/observability/kube-state-metrics/chart/kustomization.yaml
@@ -5,3 +5,9 @@ helmCharts:
     releaseName: kube-state-metrics
     valuesFile: values.yaml
     version: 5.6.4
+
+helmGlobals:
+    # Store chart in ".charts" folder instead of "charts".
+    # Otherwise "go mod tidy" picks up dependencies of go files contained in the Helm Chart.
+    # "go mod tidy" ignores folders that begin with ".": https://pkg.go.dev/cmd/go#hdr-Package_lists_and_patterns.
+    chartHome: .charts
diff --git a/hack/observability/loki/kustomization.yaml b/hack/observability/loki/kustomization.yaml
index 79532e4d75d1..8b199abb8912 100644
--- a/hack/observability/loki/kustomization.yaml
+++ b/hack/observability/loki/kustomization.yaml
@@ -8,3 +8,9 @@ helmCharts:
     namespace: observability
     valuesFile: values.yaml
     version: 5.5.4
+
+helmGlobals:
+    # Store chart in ".charts" folder instead of "charts".
+    # Otherwise "go mod tidy" picks up dependencies of go files contained in the Helm Chart.
+    # "go mod tidy" ignores folders that begin with ".": https://pkg.go.dev/cmd/go#hdr-Package_lists_and_patterns.
+    chartHome: .charts
diff --git a/hack/observability/parca/kustomization.yaml b/hack/observability/parca/kustomization.yaml
index 7f950b4a134e..60ceb93b9b4c 100644
--- a/hack/observability/parca/kustomization.yaml
+++ b/hack/observability/parca/kustomization.yaml
@@ -9,3 +9,9 @@ helmCharts:
     namespace: default
     valuesFile: values.yaml
     version: 4.10.0
+
+helmGlobals:
+    # Store chart in ".charts" folder instead of "charts".
+    # Otherwise "go mod tidy" picks up dependencies of go files contained in the Helm Chart.
+    # "go mod tidy" ignores folders that begin with ".": https://pkg.go.dev/cmd/go#hdr-Package_lists_and_patterns.
+    chartHome: .charts
diff --git a/hack/observability/prometheus/kustomization.yaml b/hack/observability/prometheus/kustomization.yaml
index 1301a03239a1..88bc0cb95a7a 100644
--- a/hack/observability/prometheus/kustomization.yaml
+++ b/hack/observability/prometheus/kustomization.yaml
@@ -8,3 +8,9 @@ helmCharts:
     namespace: observability
     valuesFile: values.yaml
     version: 22.6.2
+
+helmGlobals:
+    # Store chart in ".charts" folder instead of "charts".
+    # Otherwise "go mod tidy" picks up dependencies of go files contained in the Helm Chart.
+    # "go mod tidy" ignores folders that begin with ".": https://pkg.go.dev/cmd/go#hdr-Package_lists_and_patterns.
+    chartHome: .charts
diff --git a/hack/observability/promtail/kustomization.yaml b/hack/observability/promtail/kustomization.yaml
index 76885d7eb77e..16b1ea3bb587 100644
--- a/hack/observability/promtail/kustomization.yaml
+++ b/hack/observability/promtail/kustomization.yaml
@@ -8,3 +8,9 @@ helmCharts:
     namespace: observability
     valuesFile: values.yaml
     version: 6.11.2
+
+helmGlobals:
+    # Store chart in ".charts" folder instead of "charts".
+    # Otherwise "go mod tidy" picks up dependencies of go files contained in the Helm Chart.
+    # "go mod tidy" ignores folders that begin with ".": https://pkg.go.dev/cmd/go#hdr-Package_lists_and_patterns.
+    chartHome: .charts
diff --git a/hack/observability/visualizer/kustomization.yaml b/hack/observability/visualizer/kustomization.yaml
index 642d7379614d..e261d012e8ea 100644
--- a/hack/observability/visualizer/kustomization.yaml
+++ b/hack/observability/visualizer/kustomization.yaml
@@ -8,3 +8,9 @@ helmCharts:
     namespace: observability
     valuesFile: values.yaml
     version: 1.1.0
+
+helmGlobals:
+    # Store chart in ".charts" folder instead of "charts".
+    # Otherwise "go mod tidy" picks up dependencies of go files contained in the Helm Chart.
+    # "go mod tidy" ignores folders that begin with ".": https://pkg.go.dev/cmd/go#hdr-Package_lists_and_patterns.
+    chartHome: .charts