diff --git a/Cargo.lock b/Cargo.lock
index f536a16d..2ccaa990 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -610,9 +610,9 @@ dependencies = [
 
 [[package]]
 name = "handlebars"
-version = "4.5.0"
+version = "5.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "faa67bab9ff362228eb3d00bd024a4965d8231bbb7921167f0cfa66c6626b225"
+checksum = "94eae21d01d20dabef65d8eda734d83df6e2dea8166788804be9bd6bc92448fa"
 dependencies = [
  "log",
  "pest",
diff --git a/Cargo.toml b/Cargo.toml
index b5bf3471..44fc88e0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,7 +23,7 @@ clap = { version = "4.3.12", features = ["cargo", "wrap_help"] }
 clap_complete = "4.3.2"
 once_cell = "1.17.1"
 env_logger = "0.10.0"
-handlebars = "4.3.7"
+handlebars = "5.0"
 log = "0.4.17"
 memchr = "2.5.0"
 opener = "0.6.1"
diff --git a/src/renderer/html_handlebars/helpers/navigation.rs b/src/renderer/html_handlebars/helpers/navigation.rs
index 968a6701..86b240ba 100644
--- a/src/renderer/html_handlebars/helpers/navigation.rs
+++ b/src/renderer/html_handlebars/helpers/navigation.rs
@@ -1,7 +1,9 @@
 use std::collections::BTreeMap;
 use std::path::Path;
 
-use handlebars::{Context, Handlebars, Helper, Output, RenderContext, RenderError, Renderable};
+use handlebars::{
+    Context, Handlebars, Helper, Output, RenderContext, RenderError, RenderErrorReason, Renderable,
+};
 
 use crate::utils;
 use log::{debug, trace};
@@ -26,9 +28,9 @@ impl Target {
     ) -> Result<Option<StringMap>, RenderError> {
         match *self {
             Target::Next => {
-                let previous_path = previous_item
-                    .get("path")
-                    .ok_or_else(|| RenderError::new("No path found for chapter in JSON data"))?;
+                let previous_path = previous_item.get("path").ok_or_else(|| {
+                    RenderErrorReason::Other("No path found for chapter in JSON data".to_owned())
+                })?;
 
                 if previous_path == base_path {
                     return Ok(Some(current_item.clone()));
@@ -54,15 +56,18 @@ fn find_chapter(
     debug!("Get data from context");
 
     let chapters = rc.evaluate(ctx, "@root/chapters").and_then(|c| {
-        serde_json::value::from_value::<Vec<StringMap>>(c.as_json().clone())
-            .map_err(|_| RenderError::new("Could not decode the JSON data"))
+        serde_json::value::from_value::<Vec<StringMap>>(c.as_json().clone()).map_err(|_| {
+            RenderErrorReason::Other("Could not decode the JSON data".to_owned()).into()
+        })
     })?;
 
     let base_path = rc
         .evaluate(ctx, "@root/path")?
         .as_json()
         .as_str()
-        .ok_or_else(|| RenderError::new("Type error for `path`, string expected"))?
+        .ok_or_else(|| {
+            RenderErrorReason::Other("Type error for `path`, string expected".to_owned())
+        })?
         .replace('\"', "");
 
     if !rc.evaluate(ctx, "@root/is_index")?.is_missing() {
@@ -108,7 +113,7 @@ fn find_chapter(
 }
 
 fn render(
-    _h: &Helper<'_, '_>,
+    _h: &Helper<'_>,
     r: &Handlebars<'_>,
     ctx: &Context,
     rc: &mut RenderContext<'_, '_>,
@@ -122,7 +127,9 @@ fn render(
         .evaluate(ctx, "@root/path")?
         .as_json()
         .as_str()
-        .ok_or_else(|| RenderError::new("Type error for `path`, string expected"))?
+        .ok_or_else(|| {
+            RenderErrorReason::Other("Type error for `path`, string expected".to_owned())
+        })?
         .replace('\"', "");
 
     context.insert(
@@ -132,17 +139,23 @@ fn render(
 
     chapter
         .get("name")
-        .ok_or_else(|| RenderError::new("No title found for chapter in JSON data"))
+        .ok_or_else(|| {
+            RenderErrorReason::Other("No title found for chapter in JSON data".to_owned())
+        })
         .map(|name| context.insert("title".to_owned(), json!(name)))?;
 
     chapter
         .get("path")
-        .ok_or_else(|| RenderError::new("No path found for chapter in JSON data"))
+        .ok_or_else(|| {
+            RenderErrorReason::Other("No path found for chapter in JSON data".to_owned())
+        })
         .and_then(|p| {
             Path::new(p)
                 .with_extension("html")
                 .to_str()
-                .ok_or_else(|| RenderError::new("Link could not be converted to str"))
+                .ok_or_else(|| {
+                    RenderErrorReason::Other("Link could not be converted to str".to_owned())
+                })
                 .map(|p| context.insert("link".to_owned(), json!(p.replace('\\', "/"))))
         })?;
 
@@ -150,14 +163,14 @@ fn render(
 
     let t = _h
         .template()
-        .ok_or_else(|| RenderError::new("Error with the handlebars template"))?;
+        .ok_or_else(|| RenderErrorReason::Other("Error with the handlebars template".to_owned()))?;
     let local_ctx = Context::wraps(&context)?;
     let mut local_rc = rc.clone();
     t.render(r, &local_ctx, &mut local_rc, out)
 }
 
 pub fn previous(
-    _h: &Helper<'_, '_>,
+    _h: &Helper<'_>,
     r: &Handlebars<'_>,
     ctx: &Context,
     rc: &mut RenderContext<'_, '_>,
@@ -173,7 +186,7 @@ pub fn previous(
 }
 
 pub fn next(
-    _h: &Helper<'_, '_>,
+    _h: &Helper<'_>,
     r: &Handlebars<'_>,
     ctx: &Context,
     rc: &mut RenderContext<'_, '_>,
diff --git a/src/renderer/html_handlebars/helpers/theme.rs b/src/renderer/html_handlebars/helpers/theme.rs
index 83aba677..29fe98a2 100644
--- a/src/renderer/html_handlebars/helpers/theme.rs
+++ b/src/renderer/html_handlebars/helpers/theme.rs
@@ -1,8 +1,10 @@
-use handlebars::{Context, Handlebars, Helper, Output, RenderContext, RenderError};
+use handlebars::{
+    Context, Handlebars, Helper, Output, RenderContext, RenderError, RenderErrorReason,
+};
 use log::trace;
 
 pub fn theme_option(
-    h: &Helper<'_, '_>,
+    h: &Helper<'_>,
     _r: &Handlebars<'_>,
     ctx: &Context,
     rc: &mut RenderContext<'_, '_>,
@@ -11,14 +13,21 @@ pub fn theme_option(
     trace!("theme_option (handlebars helper)");
 
     let param = h.param(0).and_then(|v| v.value().as_str()).ok_or_else(|| {
-        RenderError::new("Param 0 with String type is required for theme_option helper.")
+        RenderErrorReason::ParamTypeMismatchForName(
+            "theme_option",
+            "0".to_owned(),
+            "string".to_owned(),
+        )
     })?;
 
     let default_theme = rc.evaluate(ctx, "@root/default_theme")?;
-    let default_theme_name = default_theme
-        .as_json()
-        .as_str()
-        .ok_or_else(|| RenderError::new("Type error for `default_theme`, string expected"))?;
+    let default_theme_name = default_theme.as_json().as_str().ok_or_else(|| {
+        RenderErrorReason::ParamTypeMismatchForName(
+            "theme_option",
+            "default_theme".to_owned(),
+            "string".to_owned(),
+        )
+    })?;
 
     out.write(param)?;
     if param.to_lowercase() == default_theme_name.to_lowercase() {
diff --git a/src/renderer/html_handlebars/helpers/toc.rs b/src/renderer/html_handlebars/helpers/toc.rs
index e96e6ef6..a7483bb1 100644
--- a/src/renderer/html_handlebars/helpers/toc.rs
+++ b/src/renderer/html_handlebars/helpers/toc.rs
@@ -4,7 +4,9 @@ use std::{cmp::Ordering, collections::BTreeMap};
 use crate::utils;
 use crate::utils::bracket_escape;
 
-use handlebars::{Context, Handlebars, Helper, HelperDef, Output, RenderContext, RenderError};
+use handlebars::{
+    Context, Handlebars, Helper, HelperDef, Output, RenderContext, RenderError, RenderErrorReason,
+};
 
 // Handlebars helper to construct TOC
 #[derive(Clone, Copy)]
@@ -15,7 +17,7 @@ pub struct RenderToc {
 impl HelperDef for RenderToc {
     fn call<'reg: 'rc, 'rc>(
         &self,
-        _h: &Helper<'reg, 'rc>,
+        _h: &Helper<'rc>,
         _r: &'reg Handlebars<'_>,
         ctx: &'rc Context,
         rc: &mut RenderContext<'reg, 'rc>,
@@ -26,13 +28,17 @@ impl HelperDef for RenderToc {
         // param is the key of value you want to display
         let chapters = rc.evaluate(ctx, "@root/chapters").and_then(|c| {
             serde_json::value::from_value::<Vec<BTreeMap<String, String>>>(c.as_json().clone())
-                .map_err(|_| RenderError::new("Could not decode the JSON data"))
+                .map_err(|_| {
+                    RenderErrorReason::Other("Could not decode the JSON data".to_owned()).into()
+                })
         })?;
         let current_path = rc
             .evaluate(ctx, "@root/path")?
             .as_json()
             .as_str()
-            .ok_or_else(|| RenderError::new("Type error for `path`, string expected"))?
+            .ok_or_else(|| {
+                RenderErrorReason::Other("Type error for `path`, string expected".to_owned())
+            })?
             .replace('\"', "");
 
         let current_section = rc
@@ -46,13 +52,17 @@ impl HelperDef for RenderToc {
             .evaluate(ctx, "@root/fold_enable")?
             .as_json()
             .as_bool()
-            .ok_or_else(|| RenderError::new("Type error for `fold_enable`, bool expected"))?;
+            .ok_or_else(|| {
+                RenderErrorReason::Other("Type error for `fold_enable`, bool expected".to_owned())
+            })?;
 
         let fold_level = rc
             .evaluate(ctx, "@root/fold_level")?
             .as_json()
             .as_u64()
-            .ok_or_else(|| RenderError::new("Type error for `fold_level`, u64 expected"))?;
+            .ok_or_else(|| {
+                RenderErrorReason::Other("Type error for `fold_level`, u64 expected".to_owned())
+            })?;
 
         out.write("<ol class=\"chapter\">")?;