diff --git a/Cargo.lock b/Cargo.lock
index 00886f8..fc63227 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -385,59 +385,44 @@ dependencies = [
 
 [[package]]
 name = "askama"
-version = "0.12.1"
+version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b79091df18a97caea757e28cd2d5fda49c6cd4bd01ddffd7ff01ace0c0ad2c28"
+checksum = "9a4e46abb203e00ef226442d452769233142bbfdd79c3941e84c8e61c4112543"
 dependencies = [
  "askama_derive",
- "askama_escape",
- "humansize",
- "num-traits",
+ "itoa",
  "percent-encoding",
  "serde",
  "serde_json",
- "serde_yaml",
-]
-
-[[package]]
-name = "askama_actix"
-version = "0.14.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e4b0dd17cfe203b00ba3853a89fba459ecf24c759b738b244133330607c78e55"
-dependencies = [
- "actix-web",
- "askama",
 ]
 
 [[package]]
 name = "askama_derive"
-version = "0.12.5"
+version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "19fe8d6cb13c4714962c072ea496f3392015f0989b1a2847bb4b2d9effd71d83"
+checksum = "54398906821fd32c728135f7b351f0c7494ab95ae421d41b6f5a020e158f28a6"
 dependencies = [
  "askama_parser",
  "basic-toml",
- "mime",
- "mime_guess",
+ "memchr",
  "proc-macro2",
  "quote",
+ "rustc-hash",
  "serde",
+ "serde_derive",
  "syn",
 ]
 
-[[package]]
-name = "askama_escape"
-version = "0.10.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "619743e34b5ba4e9703bba34deac3427c72507c7159f5fd030aea8cac0cfe341"
-
 [[package]]
 name = "askama_parser"
-version = "0.2.1"
+version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "acb1161c6b64d1c3d83108213c2a2533a342ac225aabd0bda218278c2ddb00c0"
+checksum = "cf315ce6524c857bb129ff794935cf6d42c82a6cff60526fe2a63593de4d0d4f"
 dependencies = [
- "nom",
+ "memchr",
+ "serde",
+ "serde_derive",
+ "winnow",
 ]
 
 [[package]]
@@ -1396,15 +1381,6 @@ version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "df3b46402a9d5adb4c86a0cf463f42e19994e3ee891101b1841f30a545cb49a9"
 
-[[package]]
-name = "humansize"
-version = "2.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6cb51c9a029ddc91b07a787f1d86b53ccfa49b0e86688c946ebe8d3555685dd7"
-dependencies = [
- "libm",
-]
-
 [[package]]
 name = "hyper"
 version = "1.6.0"
@@ -1844,12 +1820,6 @@ dependencies = [
  "unicase",
 ]
 
-[[package]]
-name = "minimal-lexical"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a"
-
 [[package]]
 name = "miniz_oxide"
 version = "0.8.7"
@@ -1877,16 +1847,6 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e94e1e6445d314f972ff7395df2de295fe51b71821694f0b0e1e79c4f12c8577"
 
-[[package]]
-name = "nom"
-version = "7.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d273983c5a657a70a3e8f2a01329822f3b8c8172b73826411a55751e404a0a4a"
-dependencies = [
- "memchr",
- "minimal-lexical",
-]
-
 [[package]]
 name = "nu-ansi-term"
 version = "0.46.0"
@@ -2868,7 +2828,6 @@ dependencies = [
  "actix-session",
  "actix-web",
  "askama",
- "askama_actix",
  "futures-core",
  "hex",
  "mime_guess",
@@ -2886,7 +2845,6 @@ dependencies = [
  "actix-session",
  "actix-web",
  "askama",
- "askama_actix",
  "chrono",
  "futures-core",
  "hex",
@@ -3096,19 +3054,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "serde_yaml"
-version = "0.9.34+deprecated"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a8b1a1a2ebf674015cc02edccce75287f1a0130d394307b36743c2f5d504b47"
-dependencies = [
- "indexmap",
- "itoa",
- "ryu",
- "serde",
- "unsafe-libyaml",
-]
-
 [[package]]
 name = "sha1"
 version = "0.10.6"
@@ -3901,12 +3846,6 @@ dependencies = [
  "subtle",
 ]
 
-[[package]]
-name = "unsafe-libyaml"
-version = "0.2.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "673aac59facbab8a9007c7f6108d11f63b603f7cabff99fabf650fea5c32b861"
-
 [[package]]
 name = "untrusted"
 version = "0.9.0"
diff --git a/Cargo.toml b/Cargo.toml
index 5278f75..2d21899 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -73,13 +73,7 @@ derive_more = { version = "2.0", features = [
   "deref",
   "constructor",
 ] }
-askama = { version = "0.12", features = [
-  "serde",
-  "with-actix-web",
-  "serde-json",
-  "serde-yaml",
-] }
-askama_actix = "0.14"
+askama = { version = "0.13", features = ["serde_json"] }
 sqlx = { version = "0.8", default-features = false, features = [
   "sqlx-sqlite",
   "uuid",
diff --git a/crates/frontend/Cargo.toml b/crates/frontend/Cargo.toml
index 842a90a..d9be442 100644
--- a/crates/frontend/Cargo.toml
+++ b/crates/frontend/Cargo.toml
@@ -8,7 +8,6 @@ publish = false
 
 [dependencies]
 askama.workspace = true
-askama_actix = { workspace = true }
 actix-session = { workspace = true }
 serde = { workspace = true }
 thiserror = { workspace = true }
diff --git a/crates/frontend/public/templates/pages/addressbook.html b/crates/frontend/public/templates/pages/addressbook.html
index f956a9e..9673939 100644
--- a/crates/frontend/public/templates/pages/addressbook.html
+++ b/crates/frontend/public/templates/pages/addressbook.html
@@ -8,7 +8,7 @@
 <h1>{{ name }}</h1>
 {% if let Some(description) = addressbook.description %}<p>{{ description }}</p>{% endif%}
 
-<pre>{{ addressbook|yaml }}</pre>
+<pre>{{ addressbook|json }}</pre>
 
 <a href="/frontend/user/{{ addressbook.principal }}">Back</a>
 {% endblock %}
diff --git a/crates/frontend/public/templates/pages/calendar.html b/crates/frontend/public/templates/pages/calendar.html
index 832471c..d044145 100644
--- a/crates/frontend/public/templates/pages/calendar.html
+++ b/crates/frontend/public/templates/pages/calendar.html
@@ -8,7 +8,7 @@
 <h1>{{ name }}</h1>
 {% if let Some(description) = calendar.description %}<p>{{ description }}</p>{% endif%}
 
-<pre>{{ calendar|yaml }}</pre>
+<pre>{{ calendar|json }}</pre>
 
 <a href="/frontend/user/{{ calendar.principal }}">Back</a>
 {% endblock %}
diff --git a/crates/frontend/src/lib.rs b/crates/frontend/src/lib.rs
index a835772..5a45bd2 100644
--- a/crates/frontend/src/lib.rs
+++ b/crates/frontend/src/lib.rs
@@ -6,11 +6,10 @@ use actix_web::{
     dev::ServiceResponse,
     http::{Method, StatusCode},
     middleware::{ErrorHandlerResponse, ErrorHandlers},
-    web::{self, Data, Path},
+    web::{self, Data, Html, Path},
     HttpRequest, HttpResponse, Responder,
 };
 use askama::Template;
-use askama_actix::TemplateToResponse;
 use assets::{Assets, EmbedService};
 use routes::{
     addressbook::{route_addressbook, route_addressbook_restore},
@@ -44,6 +43,7 @@ async fn route_user<CS: CalendarStore, AS: AddressbookStore>(
     cal_store: Data<CS>,
     addr_store: Data<AS>,
     user: User,
+    req: HttpRequest,
 ) -> impl Responder {
     // TODO: Check for authorization
     let user_id = path.into_inner();
@@ -51,14 +51,19 @@ async fn route_user<CS: CalendarStore, AS: AddressbookStore>(
         return actix_web::HttpResponse::Unauthorized().body("Unauthorized");
     }
 
-    UserPage {
-        calendars: cal_store.get_calendars(&user.id).await.unwrap(),
-        deleted_calendars: cal_store.get_deleted_calendars(&user.id).await.unwrap(),
-        addressbooks: addr_store.get_addressbooks(&user.id).await.unwrap(),
-        deleted_addressbooks: addr_store.get_deleted_addressbooks(&user.id).await.unwrap(),
-        user_id: user.id,
-    }
-    .to_response()
+    Html::new(
+        UserPage {
+            calendars: cal_store.get_calendars(&user.id).await.unwrap(),
+            deleted_calendars: cal_store.get_deleted_calendars(&user.id).await.unwrap(),
+            addressbooks: addr_store.get_addressbooks(&user.id).await.unwrap(),
+            deleted_addressbooks: addr_store.get_deleted_addressbooks(&user.id).await.unwrap(),
+            user_id: user.id,
+        }
+        .render()
+        .unwrap(),
+    )
+    .respond_to(&req)
+    .map_into_boxed_body()
 }
 
 async fn route_root(user: Option<User>, req: HttpRequest) -> impl Responder {
diff --git a/crates/frontend/src/routes/addressbook.rs b/crates/frontend/src/routes/addressbook.rs
index 3d98dda..4c7e9fb 100644
--- a/crates/frontend/src/routes/addressbook.rs
+++ b/crates/frontend/src/routes/addressbook.rs
@@ -1,10 +1,9 @@
 use actix_web::{
     http::{header, StatusCode},
-    web::{self, Data, Path},
+    web::{self, Data, Html, Path},
     HttpRequest, HttpResponse, Responder,
 };
 use askama::Template;
-use askama_actix::TemplateToResponse;
 use rustical_store::{auth::User, Addressbook, AddressbookStore};
 
 #[derive(Template)]
@@ -17,15 +16,21 @@ pub async fn route_addressbook<AS: AddressbookStore>(
     path: Path<(String, String)>,
     store: Data<AS>,
     user: User,
+    req: HttpRequest,
 ) -> Result<impl Responder, rustical_store::Error> {
     let (owner, addrbook_id) = path.into_inner();
     if !user.is_principal(&owner) {
         return Ok(HttpResponse::Unauthorized().body("Unauthorized"));
     }
-    Ok(AddressbookPage {
-        addressbook: store.get_addressbook(&owner, &addrbook_id).await?,
-    }
-    .to_response())
+    Ok(Html::new(
+        AddressbookPage {
+            addressbook: store.get_addressbook(&owner, &addrbook_id).await?,
+        }
+        .render()
+        .unwrap(),
+    )
+    .respond_to(&req)
+    .map_into_boxed_body())
 }
 
 pub async fn route_addressbook_restore<AS: AddressbookStore>(
diff --git a/crates/frontend/src/routes/calendar.rs b/crates/frontend/src/routes/calendar.rs
index f584eab..b70fad2 100644
--- a/crates/frontend/src/routes/calendar.rs
+++ b/crates/frontend/src/routes/calendar.rs
@@ -1,10 +1,9 @@
 use actix_web::{
     http::{header, StatusCode},
-    web::{self, Data, Path},
+    web::{self, Data, Html, Path},
     HttpRequest, HttpResponse, Responder,
 };
 use askama::Template;
-use askama_actix::TemplateToResponse;
 use rustical_store::{auth::User, Calendar, CalendarStore};
 
 #[derive(Template)]
@@ -17,15 +16,21 @@ pub async fn route_calendar<C: CalendarStore>(
     path: Path<(String, String)>,
     store: Data<C>,
     user: User,
+    req: HttpRequest,
 ) -> Result<impl Responder, rustical_store::Error> {
     let (owner, cal_id) = path.into_inner();
     if !user.is_principal(&owner) {
         return Ok(HttpResponse::Unauthorized().body("Unauthorized"));
     }
-    Ok(CalendarPage {
-        calendar: store.get_calendar(&owner, &cal_id).await?,
-    }
-    .to_response())
+    Ok(Html::new(
+        CalendarPage {
+            calendar: store.get_calendar(&owner, &cal_id).await?,
+        }
+        .render()
+        .unwrap(),
+    )
+    .respond_to(&req)
+    .map_into_boxed_body())
 }
 
 pub async fn route_calendar_restore<CS: CalendarStore>(
diff --git a/crates/frontend/src/routes/login.rs b/crates/frontend/src/routes/login.rs
index 1c54466..44f1e58 100644
--- a/crates/frontend/src/routes/login.rs
+++ b/crates/frontend/src/routes/login.rs
@@ -1,7 +1,7 @@
 use actix_session::Session;
 use actix_web::{
     error::ErrorUnauthorized,
-    web::{Data, Form, Redirect},
+    web::{Data, Form, Html, Redirect},
     HttpRequest, HttpResponse, Responder,
 };
 use askama::Template;
@@ -12,8 +12,10 @@ use serde::Deserialize;
 #[template(path = "pages/login.html")]
 struct LoginPage;
 
-pub async fn route_get_login() -> impl Responder {
-    LoginPage
+pub async fn route_get_login(req: HttpRequest) -> impl Responder {
+    Html::new(LoginPage.render().unwrap())
+        .respond_to(&req)
+        .map_into_boxed_body()
 }
 
 #[derive(Deserialize)]
diff --git a/crates/nextcloud_login/Cargo.toml b/crates/nextcloud_login/Cargo.toml
index 447016f..ea8330f 100644
--- a/crates/nextcloud_login/Cargo.toml
+++ b/crates/nextcloud_login/Cargo.toml
@@ -8,7 +8,6 @@ publish = false
 
 [dependencies]
 askama.workspace = true
-askama_actix = { workspace = true }
 actix-session = { workspace = true }
 serde = { workspace = true }
 thiserror = { workspace = true }
diff --git a/crates/nextcloud_login/src/lib.rs b/crates/nextcloud_login/src/lib.rs
index 8a2f6d7..cef7beb 100644
--- a/crates/nextcloud_login/src/lib.rs
+++ b/crates/nextcloud_login/src/lib.rs
@@ -1,6 +1,6 @@
 use actix_web::{
     http::header::{self},
-    web::{self, Data, Form, Json, Path, ServiceConfig},
+    web::{self, Data, Form, Html, Json, Path, ServiceConfig},
     HttpRequest, HttpResponse, Responder,
 };
 use askama::Template;
@@ -155,11 +155,16 @@ async fn get_nextcloud_flow(
 ) -> Result<impl Responder, rustical_store::Error> {
     let flow_id = path.into_inner();
     if let Some(flow) = state.flows.read().await.get(&flow_id) {
-        Ok(NextcloudLoginPage {
-            username: user.displayname.unwrap_or(user.id),
-            app_name: flow.app_name.to_owned(),
-        }
-        .respond_to(&req))
+        Ok(Html::new(
+            NextcloudLoginPage {
+                username: user.displayname.unwrap_or(user.id),
+                app_name: flow.app_name.to_owned(),
+            }
+            .render()
+            .unwrap(),
+        )
+        .respond_to(&req)
+        .map_into_boxed_body())
     } else {
         Ok(HttpResponse::NotFound().body("Login flow not found"))
     }
@@ -191,10 +196,15 @@ async fn post_nextcloud_flow(
             login_name: user.id.to_owned(),
             app_password: generate_app_token(),
         });
-        Ok(NextcloudLoginSuccessPage {
-            app_name: flow.app_name.to_owned(),
-        }
-        .respond_to(&req))
+        Ok(Html::new(
+            NextcloudLoginSuccessPage {
+                app_name: flow.app_name.to_owned(),
+            }
+            .render()
+            .unwrap(),
+        )
+        .respond_to(&req)
+        .map_into_boxed_body())
     } else {
         Ok(HttpResponse::NotFound().body("Login flow not found"))
     }