diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..58a31b0
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,12 @@
+[package]
+name = "ticketsystem"
+version = "0.1.0"
+edition = "2024"
+
+[workspace]
+members = ["backend", "frontend"]
+
+[workspace.dependencies]
+serde = { version = "1.0.228", features = ["derive"] }
+serde_json = "1.0.149"
+chrono = { version = "0.4.44", features = ["serde"] }
diff --git a/backend/Cargo.toml b/backend/Cargo.toml
index 66b9de7..5e8dd6b 100644
--- a/backend/Cargo.toml
+++ b/backend/Cargo.toml
@@ -6,12 +6,12 @@ edition = "2024"
 [dependencies]
 axum = "0.8.9"
 axum-extra = { version = "0.12.6", features = ["cookie", "typed-header", "form"] }
-serde = { version = "1.0.228", features = ["derive"] }
-serde_json = "1.0.149"
+serde = { workspace = true }
+serde_json = { workspace = true }
 sqlx = { version = "0.8.6", features = ["postgres", "runtime-tokio", "tls-native-tls", "chrono"] }
 tokio = { version = "1.52.1", features = ["rt-multi-thread", "macros"] }
 dotenv = "0.15.0"
-chrono = { version = "0.4.44", features = ["serde"] }
+chrono = { workspace = true }
 jsonwebtoken = { version = "10.3.0", features = ["rust_crypto"] }
 argon2 = "0.5.3"
 time = "0.3.47"
diff --git a/frontend/Cargo.toml b/frontend/Cargo.toml
index 647fd84..179f38e 100644
--- a/frontend/Cargo.toml
+++ b/frontend/Cargo.toml
@@ -12,7 +12,7 @@ path = "src/main.rs"
 
 [dependencies]
 yew = { version = "0.23", features = ["csr"] }
-serde = { version = "1.0.228", features = ["derive"] }
+serde = { workspace = true }
 wasm-bindgen = "0.2.118"
 wasm-bindgen-futures = "0.4.68"
 web-sys = { version = "0.3.95", features = [
@@ -22,7 +22,7 @@ web-sys = { version = "0.3.95", features = [
 gloo-net = "0.7.0"
 gloo-storage = "0.4.0"
 yew-router = "0.20.0"
-serde_json = "1.0.149"
+serde_json = { workspace = true }
 gloo = "0.12.0"
-chrono = { version = "0.4.44", features = ["serde"] }
+chrono = { workspace = true }
 chrono-tz = "0.10.4"