diff --git a/src/api/apps.rs b/src/api/apps.rs
index 2b1e0675..c24dd93b 100644
--- a/src/api/apps.rs
+++ b/src/api/apps.rs
@@ -4,7 +4,7 @@
 
 use rsb_derive::Builder;
 use serde::{Deserialize, Serialize};
-use serde_with::skip_serializing_none;
+use serde_with::{serde_as, skip_serializing_none};
 use url::Url;
 
 use crate::*;
@@ -124,13 +124,14 @@ pub struct SlackApiAppsConnectionOpenResponse {
     pub url: SlackWebSocketsUrl,
 }
 
+#[serde_as]
 #[skip_serializing_none]
 #[derive(Debug, PartialEq, Clone, Serialize, Deserialize, Builder)]
 pub struct SlackApiAppsManifestCreateRequest {
     pub app_id: SlackAppId,
 
     // This API requires a "json-encoded" string in a JSON object.
-    #[serde(with = "serde_with::json::nested")]
+    #[serde_as(as = "serde_with::json::JsonString")]
     pub manifest: SlackAppManifest,
 }
 
@@ -160,13 +161,14 @@ pub struct SlackApiAppsManifestExportResponse {
     pub manifest: SlackAppManifest,
 }
 
+#[serde_as]
 #[skip_serializing_none]
 #[derive(Debug, PartialEq, Clone, Serialize, Deserialize, Builder)]
 pub struct SlackApiAppsManifestUpdateRequest {
     pub app_id: SlackAppId,
 
     // This API requires a "json-encoded" string in a JSON object.
-    #[serde(with = "serde_with::json::nested")]
+    #[serde_as(as = "serde_with::json::JsonString")]
     pub manifest: SlackAppManifest,
 }
 
@@ -177,11 +179,12 @@ pub struct SlackApiAppsManifestUpdateResponse {
     pub permissions_updated: bool,
 }
 
+#[serde_as]
 #[skip_serializing_none]
 #[derive(Debug, PartialEq, Clone, Serialize, Deserialize, Builder)]
 pub struct SlackApiAppsManifestValidateRequest {
     // This API requires a "json-encoded" string in a JSON object.
-    #[serde(with = "serde_with::json::nested")]
+    #[serde_as(as = "serde_with::json::JsonString")]
     pub manifest: SlackAppManifest,
 
     pub app_id: Option<SlackAppId>,
diff --git a/src/models/blocks/view.rs b/src/models/blocks/view.rs
index 52a9eb55..3da1af5e 100644
--- a/src/models/blocks/view.rs
+++ b/src/models/blocks/view.rs
@@ -4,7 +4,7 @@ use crate::SlackCallbackId;
 use crate::*;
 use rsb_derive::Builder;
 use serde::{Deserialize, Serialize};
-use serde_with::skip_serializing_none;
+use serde_with::{serde_as, skip_serializing_none};
 use std::collections::HashMap;
 
 #[derive(Debug, PartialEq, Clone, Serialize, Deserialize)]
@@ -16,21 +16,23 @@ pub enum SlackView {
     Modal(SlackModalView),
 }
 
+#[serde_as]
 #[skip_serializing_none]
 #[derive(Debug, PartialEq, Clone, Serialize, Deserialize, Builder)]
 pub struct SlackHomeView {
     pub blocks: Vec<SlackBlock>,
     #[serde(default)]
-    #[serde(with = "serde_with::rust::string_empty_as_none")]
+    #[serde_as(as = "serde_with::NoneAsEmptyString")]
     pub private_metadata: Option<String>,
     #[serde(default)]
-    #[serde(with = "serde_with::rust::string_empty_as_none")]
+    #[serde_as(as = "serde_with::NoneAsEmptyString")]
     pub callback_id: Option<SlackCallbackId>,
     #[serde(default)]
-    #[serde(with = "serde_with::rust::string_empty_as_none")]
+    #[serde_as(as = "serde_with::NoneAsEmptyString")]
     pub external_id: Option<String>,
 }
 
+#[serde_as]
 #[skip_serializing_none]
 #[derive(Debug, PartialEq, Clone, Serialize, Deserialize, Builder)]
 pub struct SlackModalView {
@@ -39,16 +41,16 @@ pub struct SlackModalView {
     pub close: Option<SlackBlockPlainTextOnly>,
     pub submit: Option<SlackBlockPlainTextOnly>,
     #[serde(default)]
-    #[serde(with = "serde_with::rust::string_empty_as_none")]
+    #[serde_as(as = "serde_with::NoneAsEmptyString")]
     pub private_metadata: Option<String>,
     #[serde(default)]
-    #[serde(with = "serde_with::rust::string_empty_as_none")]
+    #[serde_as(as = "serde_with::NoneAsEmptyString")]
     pub callback_id: Option<SlackCallbackId>,
     pub clear_on_close: Option<bool>,
     pub notify_on_close: Option<bool>,
     pub hash: Option<String>,
     #[serde(default)]
-    #[serde(with = "serde_with::rust::string_empty_as_none")]
+    #[serde_as(as = "serde_with::NoneAsEmptyString")]
     pub external_id: Option<String>,
 }
 
diff --git a/src/models/common/mod.rs b/src/models/common/mod.rs
index abbf7e37..d7153278 100644
--- a/src/models/common/mod.rs
+++ b/src/models/common/mod.rs
@@ -3,7 +3,7 @@ use chrono::{DateTime, TimeZone, Utc};
 use rsb_derive::Builder;
 use rvstruct::ValueStruct;
 use serde::{Deserialize, Serialize};
-use serde_with::skip_serializing_none;
+use serde_with::{serde_as, skip_serializing_none};
 use std::hash::Hash;
 use std::*;
 use url::Url;
@@ -166,11 +166,12 @@ impl fmt::Debug for SlackSigningSecret {
 #[derive(Debug, Eq, PartialEq, Hash, Clone, Serialize, Deserialize, ValueStruct)]
 pub struct EmailAddress(pub String);
 
+#[serde_as]
 #[skip_serializing_none]
 #[derive(Debug, PartialEq, Clone, Serialize, Deserialize, Builder)]
 pub struct SlackResponseMetadata {
     #[serde(default)]
-    #[serde(with = "serde_with::rust::string_empty_as_none")]
+    #[serde_as(as = "serde_with::NoneAsEmptyString")]
     pub next_cursor: Option<SlackCursorId>,
 }
 
diff --git a/src/models/events/interaction.rs b/src/models/events/interaction.rs
index 2ee30dd1..f5795651 100644
--- a/src/models/events/interaction.rs
+++ b/src/models/events/interaction.rs
@@ -1,6 +1,6 @@
 use rsb_derive::Builder;
 use serde::{Deserialize, Serialize};
-use serde_with::skip_serializing_none;
+use serde_with::{serde_as, skip_serializing_none};
 
 use crate::blocks::*;
 use crate::models::messages::*;
@@ -77,6 +77,7 @@ pub struct SlackInteractionActionInfo {
     pub action_ts: Option<SlackTs>,
 }
 
+#[serde_as]
 #[skip_serializing_none]
 #[derive(Debug, PartialEq, Clone, Serialize, Deserialize, Builder)]
 pub struct SlackInteractionDialogueSubmissionEvent {
@@ -84,7 +85,7 @@ pub struct SlackInteractionDialogueSubmissionEvent {
     pub user: SlackBasicUserInfo,
     pub channel: Option<SlackBasicChannelInfo>,
     #[serde(default)]
-    #[serde(with = "serde_with::rust::string_empty_as_none")]
+    #[serde_as(as = "serde_with::NoneAsEmptyString")]
     pub callback_id: Option<SlackCallbackId>,
     pub state: Option<String>,
     pub submission: HashMap<String, String>,