diff --git a/Cargo.lock b/Cargo.lock
index 67d90e2..3d0d136 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -75,12 +75,6 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
-[[package]]
-name = "anyhow"
-version = "1.0.79"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "080e9890a082662b09c1ad45f567faeeb47f22b5fb23895fbe1e651e718e25ca"
-
 [[package]]
 name = "autocfg"
 version = "1.1.0"
@@ -98,7 +92,6 @@ name = "carl"
 version = "0.3.1"
 dependencies = [
  "anstyle",
- "anyhow",
  "chrono",
  "clap",
  "icalendar",
diff --git a/Cargo.toml b/Cargo.toml
index c18426c..e580dfc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,7 +12,6 @@ keywords = ["calendar", "ical", "cli", "date", "cal"]
 categories = ["command-line-utilities", "date-and-time"]
 
 [dependencies]
-anyhow = "1.0"
 chrono = { version = "0.4", default-features = false, features = ["clock"] }
 clap = { version = "4.4.18", features = ["derive", "cargo"] }
 toml = "0.8.*"
diff --git a/src/cli.rs b/src/cli.rs
index 3485d16..f21ccd1 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -2,7 +2,6 @@
 //
 // SPDX-License-Identifier: MIT
 
-use anyhow::{anyhow, Result};
 use chrono::prelude::*;
 use clap::{crate_authors, crate_name, crate_version, Args, Parser};
 
@@ -66,7 +65,7 @@ pub struct Action {
 }
 
 impl Cli {
-    pub fn validate_date(&self) -> Result<chrono::NaiveDate> {
+    pub fn validate_date(&self) -> Result<chrono::NaiveDate, String> {
         let mut today: chrono::NaiveDate = Local::now().date_naive();
         let mut year: i32 = today.year();
         let mut month: u32 = today.month();
@@ -76,7 +75,7 @@ impl Cli {
             year = match self.date[0].parse() {
                 Ok(x) => {
                     if x > 9999 {
-                        return Err(anyhow!(
+                        return Err(format!(
                             "{}: illegal year value: use 1-9999: {}",
                             crate_name!(),
                             x
@@ -85,7 +84,7 @@ impl Cli {
                     x
                 }
                 Err(x) => {
-                    return Err(anyhow!(
+                    return Err(format!(
                         "{}: illegal year value: use 1-9999: {}",
                         crate_name!(),
                         x
@@ -97,7 +96,7 @@ impl Cli {
             month = match self.date[1].parse() {
                 Ok(x) => {
                     if x > 12 {
-                        return Err(anyhow!(
+                        return Err(format!(
                             "{}: illegal month value: use 1-12: {}",
                             crate_name!(),
                             x
@@ -106,7 +105,7 @@ impl Cli {
                     x
                 }
                 Err(x) => {
-                    return Err(anyhow!(
+                    return Err(format!(
                         "{}: illegal month value: use 1-12: {}",
                         crate_name!(),
                         x
@@ -119,7 +118,7 @@ impl Cli {
             day = match self.date[2].parse() {
                 Ok(x) => {
                     if x > 31 {
-                        return Err(anyhow!(
+                        return Err(format!(
                             "{}: illegal day value: use 1-12: {}",
                             crate_name!(),
                             x
@@ -128,7 +127,7 @@ impl Cli {
                     x
                 }
                 Err(x) => {
-                    return Err(anyhow!(
+                    return Err(format!(
                         "{}: illegal day value: use 1-12: {}",
                         crate_name!(),
                         x
diff --git a/src/context.rs b/src/context.rs
index c768de6..52e42e1 100644
--- a/src/context.rs
+++ b/src/context.rs
@@ -6,7 +6,6 @@ use crate::cli::{Action, Cli};
 use crate::config::StyleType;
 use crate::config::{Config, Theme};
 use crate::events::EventInstances;
-use anyhow::Result;
 use chrono::prelude::*;
 use clap::Parser;
 
@@ -21,7 +20,7 @@ pub struct Context {
 }
 
 impl Context {
-    pub fn new() -> Result<Context> {
+    pub fn new() -> Result<Context, String> {
         let mut opts: Cli = Cli::parse();
         let config: Config = Config::read();
         let theme: Theme = if opts.theme.is_some() {