diff --git a/Cargo.lock b/Cargo.lock
index 441d9d2e..640bf782 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -604,7 +604,7 @@ dependencies = [
  "futures-core",
  "futures-sink",
  "futures-util",
- "http",
+ "http 0.2.12",
  "indexmap 2.2.6",
  "slab",
  "tokio",
@@ -614,9 +614,9 @@ dependencies = [
 
 [[package]]
 name = "handlebars"
-version = "4.5.0"
+version = "5.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "faa67bab9ff362228eb3d00bd024a4965d8231bbb7921167f0cfa66c6626b225"
+checksum = "d08485b96a0e6393e9e4d1b8d48cf74ad6c063cd905eb33f42c1ce3f0377539b"
 dependencies = [
  "log",
  "pest",
@@ -628,9 +628,9 @@ dependencies = [
 
 [[package]]
 name = "handlebars-fluent"
-version = "0.3.2"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dbf49bf85c4a60ff66b4627602fbbabe16458ec5bdd8294ed7a26c83173e2485"
+checksum = "7bb39cffd370c96a5de57ec5242f385bfb7d52facd774881d81e89621ce7d87e"
 dependencies = [
  "fluent",
  "fluent-bundle 0.11.0",
@@ -671,6 +671,17 @@ dependencies = [
  "itoa",
 ]
 
+[[package]]
+name = "http"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "21b9ddb458710bc376481b842f5da65cdf31522de232c1ca8146abce2a358258"
+dependencies = [
+ "bytes",
+ "fnv",
+ "itoa",
+]
+
 [[package]]
 name = "http-body"
 version = "0.4.6"
@@ -678,7 +689,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7ceab25649e9960c0311ea418d17bee82c0dcec1bd053b5f9a66e265a693bed2"
 dependencies = [
  "bytes",
- "http",
+ "http 0.2.12",
  "pin-project-lite",
 ]
 
@@ -705,7 +716,7 @@ dependencies = [
  "futures-core",
  "futures-util",
  "h2",
- "http",
+ "http 0.2.12",
  "http-body",
  "httparse",
  "httpdate",
@@ -978,16 +989,15 @@ dependencies = [
 
 [[package]]
 name = "multer"
-version = "2.1.0"
+version = "3.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "01acbdc23469fd8fe07ab135923371d5f5a422fbf9c522158677c8eb15bc51c2"
+checksum = "83e87776546dc87511aa5ee218730c92b666d7264ab6ed41f9d215af9cd5224b"
 dependencies = [
  "bytes",
  "encoding_rs",
  "futures-util",
- "http",
+ "http 1.1.0",
  "httparse",
- "log",
  "memchr",
  "mime",
  "spin",
@@ -1442,7 +1452,7 @@ dependencies = [
  "futures-core",
  "futures-util",
  "h2",
- "http",
+ "http 0.2.12",
  "http-body",
  "hyper",
  "hyper-tls",
@@ -1472,9 +1482,9 @@ dependencies = [
 
 [[package]]
 name = "rocket"
-version = "0.5.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9e7bb57ccb26670d73b6a47396c83139447b9e7878cab627fdfe9ea8da489150"
+checksum = "a516907296a31df7dc04310e7043b61d71954d703b603cc6867a026d7e72d73f"
 dependencies = [
  "async-stream",
  "async-trait",
@@ -1509,9 +1519,9 @@ dependencies = [
 
 [[package]]
 name = "rocket_codegen"
-version = "0.5.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a2238066abf75f21be6cd7dc1a09d5414a671f4246e384e49fe3f8a4936bd04c"
+checksum = "575d32d7ec1a9770108c879fc7c47815a80073f96ca07ff9525a94fcede1dd46"
 dependencies = [
  "devise",
  "glob",
@@ -1526,9 +1536,9 @@ dependencies = [
 
 [[package]]
 name = "rocket_dyn_templates"
-version = "0.1.0"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "04bfc006e547e4f72b760ab861f5943b688aed8a82c4977b5500c98f5d17dbfa"
+checksum = "5bbab919c9e67df3f7ac6624a32ef897df4cd61c0969f4d66f3ced0534660d7a"
 dependencies = [
  "handlebars",
  "normpath",
@@ -1539,14 +1549,14 @@ dependencies = [
 
 [[package]]
 name = "rocket_http"
-version = "0.5.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "37a1663694d059fe5f943ea5481363e48050acedd241d46deb2e27f71110389e"
+checksum = "e274915a20ee3065f611c044bd63c40757396b6dbc057d6046aec27f14f882b9"
 dependencies = [
  "cookie",
  "either",
  "futures",
- "http",
+ "http 0.2.12",
  "hyper",
  "indexmap 2.2.6",
  "log",
@@ -2682,7 +2692,7 @@ name = "www-rust-lang-org"
 version = "0.1.0"
 dependencies = [
  "fluent",
- "fluent-bundle 0.11.0",
+ "fluent-bundle 0.15.3",
  "fluent-locale",
  "fluent-syntax 0.11.1",
  "handlebars",
diff --git a/Cargo.toml b/Cargo.toml
index 537ee35b..dbc6e2c0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,14 +7,14 @@ edition = "2018"
 [dependencies]
 lazy_static = "1.2.0"
 fluent = "0.16"
-fluent-bundle = "0.11.0"
+fluent-bundle = "0.15.0"
 fluent-syntax = "0.11.0"
 fluent-locale = "0.10.1"
-handlebars-fluent = "0.3.1"
+handlebars-fluent = "0.4.0"
 rand = "0.8"
 regex = "1"
-rocket = "0.5.0"
-rocket_dyn_templates = { version = "0.1.0", features = ["handlebars"] }
+rocket = "0.5.1"
+rocket_dyn_templates = { version = "0.2.0", features = ["handlebars"] }
 serde = { version = "1.0", features = ["derive"] }
 serde_yaml = "0.8.17"
 sass-rs = "0.2.1"
@@ -22,6 +22,6 @@ reqwest = { version = "0.11.4", features = ["json"] }
 toml = "0.5"
 serde_json = "1.0"
 rust_team_data = { git = "https://github.com/rust-lang/team" }
-handlebars = "4.3.0"
+handlebars = "5.1.0"
 siphasher = "0.3.6"
 percent-encoding = "2.1.0"
diff --git a/src/i18n.rs b/src/i18n.rs
index f2153372..eb335ebb 100644
--- a/src/i18n.rs
+++ b/src/i18n.rs
@@ -1,5 +1,5 @@
 use handlebars::{
-    Context, Handlebars, Helper, HelperDef, HelperResult, Output, RenderContext, RenderError,
+    Context, Handlebars, Helper, HelperDef, HelperResult, Output, RenderContext, RenderErrorReason,
 };
 
 use rocket::request::FromParam;
@@ -149,32 +149,38 @@ impl TeamHelperParam {
 impl HelperDef for TeamHelper {
     fn call<'reg: 'rc, 'rc>(
         &self,
-        h: &Helper<'reg, 'rc>,
+        h: &Helper<'rc>,
         _: &'reg Handlebars,
         context: &'rc Context,
         rcx: &mut RenderContext<'reg, 'rc>,
         out: &mut dyn Output,
     ) -> HelperResult {
         let Some(name) = h.param(0) else {
-            return Err(RenderError::new(
+            return Err(RenderErrorReason::ParamNotFoundForIndex(
                 "{{team-text}} must have at least two parameters",
-            ));
+                0,
+            )
+            .into());
         };
         let Some(name) = name.relative_path() else {
-            return Err(RenderError::new(
+            return Err(RenderErrorReason::InvalidParamType(
                 "{{team-text}} takes only identifier parameters",
-            ));
+            )
+            .into());
         };
 
         let Some(id) = h.param(1) else {
-            return Err(RenderError::new(
+            return Err(RenderErrorReason::ParamNotFoundForIndex(
                 "{{team-text}} must have at least two parameters",
-            ));
+                1,
+            )
+            .into());
         };
         let Some(id) = id.relative_path() else {
-            return Err(RenderError::new(
+            return Err(RenderErrorReason::InvalidParamType(
                 "{{team-text}} takes only identifier parameters",
-            ));
+            )
+            .into());
         };
 
         let param = match id.as_str() {
@@ -182,22 +188,25 @@ impl HelperDef for TeamHelper {
             "description" => TeamHelperParam::Description,
             "role" => {
                 let Some(role_id) = h.param(2) else {
-                    return Err(RenderError::new(
+                    return Err(RenderErrorReason::ParamNotFoundForIndex(
                         "{{team-text}} requires a third parameter for the role id",
-                    ));
+                        2,
+                    )
+                    .into());
                 };
                 TeamHelperParam::Role(role_id.value().as_str().unwrap().to_owned())
             }
             unrecognized => {
-                return Err(RenderError::new(format!(
+                return Err(RenderErrorReason::Other(format!(
                     "unrecognized {{{{team-text}}}} param {unrecognized:?}",
-                )));
+                ))
+                .into());
             }
         };
 
         let team = rcx
             .evaluate(context, name)
-            .map_err(|e| RenderError::from_error(&format!("Cannot find team {}", name), e))?;
+            .map_err(|e| RenderErrorReason::NestedError(Box::new(e)))?;
         let lang = context
             .data()
             .get("lang")
@@ -210,18 +219,18 @@ impl HelperDef for TeamHelper {
         if lang == "en-US" {
             let english = param.english(team.as_json());
             out.write(english)
-                .map_err(|e| RenderError::from_error("failed to render English team data", e))?;
+                .map_err(|e| RenderErrorReason::NestedError(Box::new(e)))?;
         } else if let Some(value) = self.i18n.lookup_no_default_fallback(
             &lang.parse().expect("language must be valid"),
             &param.fluent_id(team_name),
             None,
         ) {
             out.write(&value)
-                .map_err(|e| RenderError::from_error("failed to render translated team data", e))?;
+                .map_err(|e| RenderErrorReason::NestedError(Box::new(e)))?;
         } else {
             let english = param.english(team.as_json());
             out.write(english)
-                .map_err(|e| RenderError::from_error("failed to render", e))?;
+                .map_err(|e| RenderErrorReason::NestedError(Box::new(e)))?;
         }
         Ok(())
     }
diff --git a/src/teams.rs b/src/teams.rs
index 142334ba..dd22566f 100644
--- a/src/teams.rs
+++ b/src/teams.rs
@@ -1,4 +1,6 @@
-use handlebars::{Context, Handlebars, Helper, HelperResult, Output, RenderContext, RenderError};
+use handlebars::{
+    Context, Handlebars, Helper, HelperResult, Output, RenderContext, RenderErrorReason,
+};
 use percent_encoding::{utf8_percent_encode, AsciiSet, NON_ALPHANUMERIC};
 use rust_team_data::v1::{Team, TeamKind, Teams, BASE_URL};
 use std::cmp::Reverse;
@@ -212,16 +214,21 @@ pub fn encode_zulip_stream(
     let zulip_stream = if let Some(p) = h.param(0) {
         p.value()
     } else {
-        return Err(RenderError::new(
+        return Err(RenderErrorReason::ParamNotFoundForIndex(
             "{{encode-zulip-stream takes 1 parameter}}",
-        ));
+            0,
+        )
+        .into());
     };
     let zulip_stream = if let Some(s) = zulip_stream.as_str() {
         s
     } else {
-        return Err(RenderError::new(
-            "{{encode-zulip-stream takes a string parameter}}",
-        ));
+        return Err(RenderErrorReason::ParamTypeMismatchForName(
+            "encode-zulip-stream",
+            "0".into(),
+            "string".into(),
+        )
+        .into());
     };
 
     // https://github.com/zulip/zulip/blob/159641bab8c248f5b72a4e736462fb0b48e7fa24/static/js/hash_util.js#L20-L25
diff --git a/templates/learn/get-started.html.hbs b/templates/learn/get-started.html.hbs
index f24678f9..4fd02433 100644
--- a/templates/learn/get-started.html.hbs
+++ b/templates/learn/get-started.html.hbs
@@ -137,6 +137,5 @@ fn main() {
            src="/static/images/ferris.gif" />
   </div>
 </section>
-{{> components/tools/install-script }}
 {{/inline}}
 {{~> (lookup this "parent")~}}