diff --git a/modules/gcp/kms/main.tf b/modules/gcp/kms/main.tf
index dfc2663..073a064 100644
--- a/modules/gcp/kms/main.tf
+++ b/modules/gcp/kms/main.tf
@@ -7,7 +7,7 @@ resource "google_kms_key_ring" "vault_keyring" {
 resource "google_kms_crypto_key" "vault_crypto_key" {
   name            = "vault-key"
   key_ring        = google_kms_key_ring.vault_keyring.id
-  rotation_period = "86400s" # 1d
+  rotation_period = "7776000s" # 90d
 
   depends_on = [google_kms_key_ring.vault_keyring]
 }