diff --git a/.github/ct-install.yaml b/.github/ct-install.yaml
index 74ef4d0885a..2856d09725b 100644
--- a/.github/ct-install.yaml
+++ b/.github/ct-install.yaml
@@ -42,6 +42,3 @@ chart-repos:
   - truecharts=https://charts.truecharts.org
   - truecharts-library=https://library-charts.truecharts.org
   - truecharts-deps=https://deps.truecharts.org
-  - bitnami=https://charts.bitnami.com/bitnami
-  - grafana=https://grafana.github.io/helm-charts
-  - prometheus=https://prometheus-community.github.io/helm-charts