diff --git a/src/admin.rs b/src/admin.rs
index 0a40d18..f34fd9d 100644
--- a/src/admin.rs
+++ b/src/admin.rs
@@ -159,7 +159,7 @@ pub(crate) fn update_platform_fee(env: &Env, new_fee: u32) -> Result<(), Error>
     let admin = get_admin(env);
     assert_admin(env, &admin)?;
     // No require_not_paused: admin must be able to adjust fees during an emergency pause (#388).
-    if new_fee > crate::PLATFORM_FEE_MAX_BPS {
+    if new_fee > crate::PLATFORM_FEE_MAX_BPS || new_fee > 10000 {
         return Err(Error::InvalidPlatformFee);
     }
     let old_fee = get_platform_fee(env);
diff --git a/src/campaigns/update.rs b/src/campaigns/update.rs
index c49b42f..01593f2 100644
--- a/src/campaigns/update.rs
+++ b/src/campaigns/update.rs
@@ -61,6 +61,7 @@ pub(crate) fn update_campaign_description(
     let mut campaign = get_creator_campaign(env, campaign_id)?;
     require_not_paused(env)?;
 
+    require_unverified_campaign(&campaign)?;
     require_active_campaign(&campaign)?;
     if description.len() < crate::CAMPAIGN_DESCRIPTION_MIN_LEN
         || description.len() > crate::CAMPAIGN_DESCRIPTION_MAX_LEN
@@ -71,6 +72,7 @@ pub(crate) fn update_campaign_description(
     bump_instance_ttl(env);
     let event_desc = description.clone();
     campaign.description = description;
+    campaign.is_verified = false;
     set_campaign(env, campaign_id, &campaign);
 
     env.events()