diff --git a/Cargo.lock b/Cargo.lock
index d8157f56..d8c3da3a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3710,9 +3710,9 @@ dependencies = [
 
 [[package]]
 name = "minijinja"
-version = "1.0.13"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "562e7acc6adf9a8359061ea3e0634560a3f636dc0539d36cd300c82fd703f528"
+checksum = "7165d0e94806d52ad5295e4b54a95176d831814840bc067298ca647e1c956338"
 dependencies = [
  "memo-map",
  "self_cell",
diff --git a/Cargo.toml b/Cargo.toml
index e9f9d8de..fcd3c97c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -108,7 +108,7 @@ default-features = false
 
 # Templates
 [workspace.dependencies.minijinja]
-version = "1.0.13"
+version = "2.0.1"
 
 # Random values
 [workspace.dependencies.rand]
diff --git a/crates/handlers/src/upstream_oauth2/callback.rs b/crates/handlers/src/upstream_oauth2/callback.rs
index a49f245b..44466d85 100644
--- a/crates/handlers/src/upstream_oauth2/callback.rs
+++ b/crates/handlers/src/upstream_oauth2/callback.rs
@@ -242,7 +242,7 @@ pub(crate) async fn get(
 
     let env = {
         let mut env = minijinja::Environment::new();
-        env.add_global("user", minijinja::Value::from_serializable(&id_token));
+        env.add_global("user", minijinja::Value::from_serialize(&id_token));
         env
     };
 
diff --git a/crates/handlers/src/upstream_oauth2/template.rs b/crates/handlers/src/upstream_oauth2/template.rs
index 586a82e0..2424adbc 100644
--- a/crates/handlers/src/upstream_oauth2/template.rs
+++ b/crates/handlers/src/upstream_oauth2/template.rs
@@ -43,7 +43,7 @@ fn b64encode(bytes: &[u8]) -> String {
 }
 
 /// Decode a Tag-Length-Value encoded byte array into a map of tag to value.
-fn tlvdecode(bytes: &[u8]) -> Result<HashMap<u8, Value>, Error> {
+fn tlvdecode(bytes: &[u8]) -> Result<HashMap<Value, Value>, Error> {
     let mut iter = bytes.iter().copied();
     let mut ret = HashMap::new();
     loop {
@@ -67,7 +67,7 @@ fn tlvdecode(bytes: &[u8]) -> Result<HashMap<u8, Value>, Error> {
             );
         }
 
-        ret.insert(tag, Value::from(Arc::new(bytes)));
+        ret.insert(tag.into(), Value::from(Arc::new(bytes)));
     }
 
     Ok(ret)
diff --git a/crates/i18n-scan/src/main.rs b/crates/i18n-scan/src/main.rs
index 6fa3ef8b..fb99220e 100644
--- a/crates/i18n-scan/src/main.rs
+++ b/crates/i18n-scan/src/main.rs
@@ -12,8 +12,13 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// Without the custom_syntax feature, the `SyntaxConfig` is a unit struct
+// which is annoying with this clippy lint
+#![allow(clippy::default_constructed_unit_structs)]
+
 use std::fs::File;
 
+use ::minijinja::{machinery::WhitespaceConfig, syntax::SyntaxConfig};
 use camino::Utf8PathBuf;
 use clap::Parser;
 use key::Context;
@@ -77,7 +82,12 @@ fn main() {
         if options.extensions.split(',').any(|e| e == extension) {
             tracing::debug!("Parsing {relative}");
             let template = std::fs::read_to_string(&path).expect("Failed to read template");
-            match minijinja::parse(&template, relative.as_str()) {
+            match minijinja::parse(
+                &template,
+                relative.as_str(),
+                SyntaxConfig::default(),
+                WhitespaceConfig::default(),
+            ) {
                 Ok(ast) => {
                     context.set_current_file(relative.as_str());
                     minijinja::find_in_stmt(&mut context, &ast).unwrap();
diff --git a/crates/i18n-scan/src/minijinja.rs b/crates/i18n-scan/src/minijinja.rs
index d9936890..519b1bdd 100644
--- a/crates/i18n-scan/src/minijinja.rs
+++ b/crates/i18n-scan/src/minijinja.rs
@@ -247,6 +247,8 @@ fn find_in_optional_expr<'a>(
 
 #[cfg(test)]
 mod tests {
+    use minijinja::{machinery::WhitespaceConfig, syntax::SyntaxConfig};
+
     use super::*;
 
     #[test]
@@ -288,7 +290,13 @@ mod tests {
         ];
 
         for (name, content) in templates {
-            let ast = parse(content, name).unwrap();
+            let ast = parse(
+                content,
+                name,
+                SyntaxConfig::default(),
+                WhitespaceConfig::default(),
+            )
+            .unwrap();
             find_in_stmt(&mut context, &ast).unwrap();
         }
 
@@ -323,7 +331,13 @@ mod tests {
     fn test_invalid_key_not_string() {
         // This is invalid because the key is not a string
         let mut context = Context::new("t".to_owned());
-        let ast = parse(r"{{ t(5) }}", "invalid.txt").unwrap();
+        let ast = parse(
+            r"{{ t(5) }}",
+            "invalid.txt",
+            SyntaxConfig::default(),
+            WhitespaceConfig::default(),
+        )
+        .unwrap();
 
         let res = find_in_stmt(&mut context, &ast);
         assert!(res.is_err());
@@ -333,7 +347,13 @@ mod tests {
     fn test_invalid_key_filtered() {
         // This is invalid because the key argument has a filter
         let mut context = Context::new("t".to_owned());
-        let ast = parse(r#"{{ t("foo" | bar) }}"#, "invalid.txt").unwrap();
+        let ast = parse(
+            r#"{{ t("foo" | bar) }}"#,
+            "invalid.txt",
+            SyntaxConfig::default(),
+            WhitespaceConfig::default(),
+        )
+        .unwrap();
 
         let res = find_in_stmt(&mut context, &ast);
         assert!(res.is_err());
@@ -343,7 +363,13 @@ mod tests {
     fn test_invalid_key_missing() {
         // This is invalid because the key argument is missing
         let mut context = Context::new("t".to_owned());
-        let ast = parse(r"{{ t() }}", "invalid.txt").unwrap();
+        let ast = parse(
+            r"{{ t() }}",
+            "invalid.txt",
+            SyntaxConfig::default(),
+            WhitespaceConfig::default(),
+        )
+        .unwrap();
 
         let res = find_in_stmt(&mut context, &ast);
         assert!(res.is_err());
@@ -353,7 +379,13 @@ mod tests {
     fn test_invalid_key_negated() {
         // This is invalid because the key argument is missing
         let mut context = Context::new("t".to_owned());
-        let ast = parse(r#"{{ t(not "foo") }}"#, "invalid.txt").unwrap();
+        let ast = parse(
+            r#"{{ t(not "foo") }}"#,
+            "invalid.txt",
+            SyntaxConfig::default(),
+            WhitespaceConfig::default(),
+        )
+        .unwrap();
 
         let res = find_in_stmt(&mut context, &ast);
         assert!(res.is_err());
diff --git a/crates/templates/src/context/branding.rs b/crates/templates/src/context/branding.rs
index 5cdb7469..fe1aa5d3 100644
--- a/crates/templates/src/context/branding.rs
+++ b/crates/templates/src/context/branding.rs
@@ -14,7 +14,10 @@
 
 use std::sync::Arc;
 
-use minijinja::{value::StructObject, Value};
+use minijinja::{
+    value::{Enumerator, Object},
+    Value,
+};
 
 /// Site branding information.
 #[derive(Debug, Clone, PartialEq, Eq)]
@@ -59,9 +62,9 @@ impl SiteBranding {
     }
 }
 
-impl StructObject for SiteBranding {
-    fn get_field(&self, name: &str) -> Option<Value> {
-        match name {
+impl Object for SiteBranding {
+    fn get_value(self: &Arc<Self>, name: &Value) -> Option<Value> {
+        match name.as_str()? {
             "server_name" => Some(self.server_name.clone().into()),
             "policy_uri" => self.policy_uri.clone().map(Value::from),
             "tos_uri" => self.tos_uri.clone().map(Value::from),
@@ -70,7 +73,7 @@ impl StructObject for SiteBranding {
         }
     }
 
-    fn static_fields(&self) -> Option<&'static [&'static str]> {
-        Some(&["server_name", "policy_uri", "tos_uri", "imprint"])
+    fn enumerate(self: &Arc<Self>) -> Enumerator {
+        Enumerator::Str(&["server_name", "policy_uri", "tos_uri", "imprint"])
     }
 }
diff --git a/crates/templates/src/context/features.rs b/crates/templates/src/context/features.rs
index 6433f8e8..96df6734 100644
--- a/crates/templates/src/context/features.rs
+++ b/crates/templates/src/context/features.rs
@@ -12,7 +12,12 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use minijinja::{value::StructObject, Value};
+use std::sync::Arc;
+
+use minijinja::{
+    value::{Enumerator, Object},
+    Value,
+};
 
 /// Site features information.
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
@@ -24,16 +29,16 @@ pub struct SiteFeatures {
     pub password_login: bool,
 }
 
-impl StructObject for SiteFeatures {
-    fn get_field(&self, field: &str) -> Option<Value> {
-        match field {
+impl Object for SiteFeatures {
+    fn get_value(self: &Arc<Self>, field: &Value) -> Option<Value> {
+        match field.as_str()? {
             "password_registration" => Some(Value::from(self.password_registration)),
             "password_login" => Some(Value::from(self.password_login)),
             _ => None,
         }
     }
 
-    fn static_fields(&self) -> Option<&'static [&'static str]> {
-        Some(&["password_registration", "password_login"])
+    fn enumerate(self: &Arc<Self>) -> Enumerator {
+        Enumerator::Str(&["password_registration", "password_login"])
     }
 }
diff --git a/crates/templates/src/functions.rs b/crates/templates/src/functions.rs
index 9b26b868..a447ad12 100644
--- a/crates/templates/src/functions.rs
+++ b/crates/templates/src/functions.rs
@@ -31,7 +31,7 @@ use mas_spa::ViteManifest;
 use minijinja::{
     escape_formatter,
     machinery::make_string_output,
-    value::{from_args, Kwargs, Object, SeqObject, ViaDeserialize},
+    value::{from_args, Kwargs, Object, ViaDeserialize},
     Error, ErrorKind, State, Value,
 };
 use url::Url;
@@ -76,8 +76,8 @@ pub fn register(
     });
 }
 
-fn tester_empty(seq: &dyn SeqObject) -> bool {
-    seq.item_count() == 0
+fn tester_empty(seq: Value) -> bool {
+    seq.len() == Some(0)
 }
 
 fn tester_starting_with(value: &str, prefix: &str) -> bool {
@@ -236,7 +236,7 @@ impl std::fmt::Display for TranslatorFunc {
 }
 
 impl Object for TranslatorFunc {
-    fn call(&self, _state: &State, args: &[Value]) -> Result<Value, Error> {
+    fn call(self: &Arc<Self>, _state: &State, args: &[Value]) -> Result<Value, Error> {
         let (lang,): (&str,) = from_args(args)?;
 
         let lang: DataLocale = lang.parse().map_err(|e| {
@@ -271,7 +271,7 @@ impl std::fmt::Display for TranslateFunc {
 }
 
 impl Object for TranslateFunc {
-    fn call(&self, state: &State, args: &[Value]) -> Result<Value, Error> {
+    fn call(self: &Arc<Self>, state: &State, args: &[Value]) -> Result<Value, Error> {
         let (key, kwargs): (&str, Kwargs) = from_args(args)?;
 
         let (message, _locale) = if let Some(count) = kwargs.get("count")? {
@@ -326,7 +326,12 @@ impl Object for TranslateFunc {
         Ok(Value::from_safe_string(buf))
     }
 
-    fn call_method(&self, _state: &State, name: &str, args: &[Value]) -> Result<Value, Error> {
+    fn call_method(
+        self: &Arc<Self>,
+        _state: &State,
+        name: &str,
+        args: &[Value],
+    ) -> Result<Value, Error> {
         match name {
             "relative_date" => {
                 let (date,): (String,) = from_args(args)?;
@@ -435,7 +440,7 @@ impl std::fmt::Display for IncludeAsset {
 }
 
 impl Object for IncludeAsset {
-    fn call(&self, _state: &State, args: &[Value]) -> Result<Value, Error> {
+    fn call(self: &Arc<Self>, _state: &State, args: &[Value]) -> Result<Value, Error> {
         let (path, kwargs): (&str, Kwargs) = from_args(args)?;
 
         let preload = kwargs.get("preload").unwrap_or(false);
@@ -493,7 +498,12 @@ impl std::fmt::Display for Counter {
 }
 
 impl Object for Counter {
-    fn call_method(&self, _state: &State, name: &str, args: &[Value]) -> Result<Value, Error> {
+    fn call_method(
+        self: &Arc<Self>,
+        _state: &State,
+        name: &str,
+        args: &[Value],
+    ) -> Result<Value, Error> {
         // None of the methods take any arguments
         from_args::<()>(args)?;
 
diff --git a/crates/templates/src/lib.rs b/crates/templates/src/lib.rs
index fcd8f1ae..a1f77ed3 100644
--- a/crates/templates/src/lib.rs
+++ b/crates/templates/src/lib.rs
@@ -234,8 +234,8 @@ impl Templates {
         })
         .await??;
 
-        env.add_global("branding", Value::from_struct_object(branding));
-        env.add_global("features", Value::from_struct_object(features));
+        env.add_global("branding", Value::from_object(branding));
+        env.add_global("features", Value::from_object(features));
 
         self::functions::register(
             &mut env,
diff --git a/crates/templates/src/macros.rs b/crates/templates/src/macros.rs
index f2f43b66..940201a4 100644
--- a/crates/templates/src/macros.rs
+++ b/crates/templates/src/macros.rs
@@ -62,7 +62,7 @@ macro_rules! register_templates {
                     $(< $( $lt $( : $clt $(+ $dlt )* )? ),+ >)?
                     (&self, context: &$param)
                 -> Result<String, TemplateError> {
-                    let ctx = ::minijinja::value::Value::from_serializable(context);
+                    let ctx = ::minijinja::value::Value::from_serialize(context);
 
                     let env = self.environment.load();
                     let tmpl = env.get_template($template)