diff --git a/.gitignore b/.gitignore
index 3859bc4..83518ad 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,5 @@
 target/
-config.yaml
+config.toml
 db.sqlite3
 
-.vscode/
\ No newline at end of file
+.vscode/
diff --git a/Cargo.lock b/Cargo.lock
index ddcaf32..7022028 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -58,7 +58,7 @@ dependencies = [
  "proc-macro-error",
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -208,11 +208,11 @@ dependencies = [
  "rrule",
  "rust-i18n",
  "serde",
- "serde_yaml",
  "strum",
  "teloxide",
  "thiserror",
  "tokio",
+ "toml 0.9.8",
 ]
 
 [[package]]
@@ -367,7 +367,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "strsim 0.11.1",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -389,7 +389,7 @@ checksum = "d336a2a514f6ccccaa3e09b02d41d35330c07ddf03a62165fcec10bb561c7806"
 dependencies = [
  "darling_core 0.20.10",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -411,7 +411,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "rustc_version",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -436,7 +436,7 @@ dependencies = [
  "dsl_auto_type",
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -456,7 +456,7 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "209c735641a413bc68c4923a9d6ad4bcb3ca306b794edaa7eb0b3228a99ffb25"
 dependencies = [
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -479,7 +479,7 @@ dependencies = [
  "heck 0.5.0",
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -665,7 +665,7 @@ checksum = "87750cf4b7a4c0625b1529e4c543c2182106e4dedc60a2a6455e00d212c489ac"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -785,9 +785,9 @@ dependencies = [
 
 [[package]]
 name = "hashbrown"
-version = "0.14.5"
+version = "0.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
+checksum = "5419bdc4f6a9207fbeba6d11b604d481addf78ecd10c11ad51e76c2f6482748d"
 
 [[package]]
 name = "heck"
@@ -1081,9 +1081,9 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "2.5.0"
+version = "2.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68b900aa2f7301e21c36462b170ee99994de34dff39a4a6a528e80e7376d07e5"
+checksum = "6717a8d2a5a929a1a2eb43a12812498ed141a0bcfb7e8f7844fbdbe4303bba9f"
 dependencies = [
  "equivalent",
  "hashbrown",
@@ -1331,7 +1331,7 @@ checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -1428,7 +1428,7 @@ checksum = "2f38a4412a78282e09a2cf38d195ea5420d15ba0602cb375210efbc877243965"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -1714,7 +1714,7 @@ dependencies = [
  "serde",
  "serde_json",
  "serde_yml",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -1884,22 +1884,32 @@ checksum = "61697e0a1c7e512e84a621326239844a24d8207b4669b41bc18b32ea5cbf988b"
 
 [[package]]
 name = "serde"
-version = "1.0.210"
+version = "1.0.228"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c8e3592472072e6e22e0a54d5904d9febf8508f65fb8552499a1abc7d1078c3a"
+checksum = "9a8e94ea7f378bd32cbbd37198a4a91436180c5bb472411e48b5ec2e2124ae9e"
+dependencies = [
+ "serde_core",
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_core"
+version = "1.0.228"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41d385c7d4ca58e59fc732af25c3983b67ac852c1a25000afe1175de458b67ad"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.210"
+version = "1.0.228"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "243902eda00fad750862fc144cea25caca5e20d615af0a81bee94ca738f1df1f"
+checksum = "d540f220d3187173da220f885ab66608367b6574e925011a9353e4badda91d79"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -1923,6 +1933,15 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serde_spanned"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e24345aa0fe688594e73770a5f6d1b216508b4f93484c0026d521acd30134392"
+dependencies = [
+ "serde_core",
+]
+
 [[package]]
 name = "serde_urlencoded"
 version = "0.7.1"
@@ -1957,19 +1976,6 @@ dependencies = [
  "syn 1.0.109",
 ]
 
-[[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 = "serde_yml"
 version = "0.0.11"
@@ -2082,7 +2088,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "rustversion",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -2104,9 +2110,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.77"
+version = "2.0.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9f35bcdf61fd8e7be6caf75f429fdca8beb3ed76584befb503b1569faee373ed"
+checksum = "25aa4ce346d03a6dcd68dd8b4010bcb74e54e62c90c573f394c46eae99aba32d"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2290,7 +2296,7 @@ checksum = "08904e7672f5eb876eaaf87e0ce17857500934f4981c4a0ab2b4aa98baac7fc3"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -2364,7 +2370,7 @@ checksum = "693d596312e88961bc67d7f1f97af8a70227d9f90c31bba5806eec004978d752"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -2419,8 +2425,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd79e69d3b627db300ff956027cc6c3798cef26d22526befdfcd12feeb6d2257"
 dependencies = [
  "serde",
- "serde_spanned",
- "toml_datetime",
+ "serde_spanned 0.6.8",
+ "toml_datetime 0.6.8",
  "toml_edit 0.19.15",
 ]
 
@@ -2431,11 +2437,26 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a1ed1f98e3fdc28d6d910e6737ae6ab1a93bf1985935a1193e68f93eeb68d24e"
 dependencies = [
  "serde",
- "serde_spanned",
- "toml_datetime",
+ "serde_spanned 0.6.8",
+ "toml_datetime 0.6.8",
  "toml_edit 0.22.22",
 ]
 
+[[package]]
+name = "toml"
+version = "0.9.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0dc8b1fb61449e27716ec0e1bdf0f6b8f3e8f6b05391e8497b8b6d7804ea6d8"
+dependencies = [
+ "indexmap",
+ "serde_core",
+ "serde_spanned 1.0.3",
+ "toml_datetime 0.7.3",
+ "toml_parser",
+ "toml_writer",
+ "winnow 0.7.13",
+]
+
 [[package]]
 name = "toml_datetime"
 version = "0.6.8"
@@ -2445,6 +2466,15 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "toml_datetime"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f2cdb639ebbc97961c51720f858597f7f24c4fc295327923af55b74c3c724533"
+dependencies = [
+ "serde_core",
+]
+
 [[package]]
 name = "toml_edit"
 version = "0.19.15"
@@ -2453,8 +2483,8 @@ checksum = "1b5bb770da30e5cbfde35a2d7b9b8a2c4b8ef89548a7a6aeab5c9a576e3e7421"
 dependencies = [
  "indexmap",
  "serde",
- "serde_spanned",
- "toml_datetime",
+ "serde_spanned 0.6.8",
+ "toml_datetime 0.6.8",
  "winnow 0.5.40",
 ]
 
@@ -2466,11 +2496,26 @@ checksum = "4ae48d6208a266e853d946088ed816055e556cc6028c5e8e2b84d9fa5dd7c7f5"
 dependencies = [
  "indexmap",
  "serde",
- "serde_spanned",
- "toml_datetime",
+ "serde_spanned 0.6.8",
+ "toml_datetime 0.6.8",
  "winnow 0.6.20",
 ]
 
+[[package]]
+name = "toml_parser"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0cbe268d35bdb4bb5a56a2de88d0ad0eb70af5384a99d648cd4b3d04039800e"
+dependencies = [
+ "winnow 0.7.13",
+]
+
+[[package]]
+name = "toml_writer"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df8b2b54733674ad286d16267dcfc7a71ed5c776e4ac7aa3c3e2561f7c637bf2"
+
 [[package]]
 name = "tower-service"
 version = "0.3.3"
@@ -2543,12 +2588,6 @@ dependencies = [
  "tinyvec",
 ]
 
-[[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"
@@ -2641,7 +2680,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
  "wasm-bindgen-shared",
 ]
 
@@ -2675,7 +2714,7 @@ checksum = "afc340c74d9005395cf9dd098506f7f44e38f2b4a21c6aaacf9a105ea5e1e836"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -2923,6 +2962,12 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "winnow"
+version = "0.7.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "21a0236b59786fed61e2a80582dd500fe61f18b5dca67a4a067d0bc9039339cf"
+
 [[package]]
 name = "winreg"
 version = "0.50.0"
diff --git a/Cargo.toml b/Cargo.toml
index 04c7c86..2f861b0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,11 +24,11 @@ reqwest = "0.12.4"
 rrule = "0.13.0"
 rust-i18n = "3.0.1"
 serde = { version = "1.0.145", features = ["derive"] }
-serde_yaml = "0.9.13"
 strum = { version = "0.26.1", features = ["derive"] }
 teloxide = { version = "0.13.0", features = ["macros", "throttle"] }
 thiserror = "1.0.56"
 tokio = { version = "1.21.2", features = ["macros"] }
+toml = "0.9.8"
 
 [package.metadata.i18n]
 available-locales = ["en", "de"]
diff --git a/src/error.rs b/src/error.rs
index 9af2355..e4938df 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -2,8 +2,8 @@ use thiserror::Error;
 
 #[derive(Error, Debug)]
 pub enum ConfigLoadError {
-	#[error("Failed to open config file: {0}")]
-	OpenFailed(#[source] std::io::Error),
 	#[error("Failed to read config file: {0}")]
-	ReadError(#[source] serde_yaml::Error),
+	ReadError(#[source] std::io::Error),
+	#[error("Failed to parse config file: {0}")]
+	ParseError(#[source] toml::de::Error),
 }
diff --git a/src/main.rs b/src/main.rs
index b1ea760..74b6a89 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -6,7 +6,8 @@ mod migrating_send;
 mod schema;
 
 use std::env::args;
-use std::{env, fs::File, io::BufReader, sync::Arc};
+use std::fs::read_to_string;
+use std::{env, sync::Arc};
 
 use anyhow::Result;
 use async_mutex::Mutex;
@@ -48,7 +49,7 @@ pub struct Config {
 impl Config {
 	fn load() -> Result<Self, ConfigLoadError> {
 		let env_var_name = "CALENDAR_BOT_CONFIG_FILE";
-		let default_filename = "./config.yaml";
+		let default_filename = "./config.toml";
 		let path = env::var(env_var_name).unwrap_or_else(|_| {
 			warn!(
 				"Cannot read env var '{}', assuming '{}'",
@@ -57,9 +58,8 @@ impl Config {
 			default_filename.to_owned()
 		});
 		info!("Reading configuration from {}", path);
-		let file = File::open(path).map_err(ConfigLoadError::OpenFailed)?;
-		let reader = BufReader::new(file);
-		serde_yaml::from_reader(reader).map_err(ConfigLoadError::ReadError)
+		let s = read_to_string(path).map_err(ConfigLoadError::ReadError)?;
+		toml::from_str(&s).map_err(ConfigLoadError::ParseError)
 	}
 }