diff --git a/Cargo.lock b/Cargo.lock
index 5388f8f..ee54ba5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -54,26 +54,24 @@ checksum = "cdead85bdec19c194affaeeb670c0e41fe23de31459efd1c174d049269cf02cc"
 
 [[package]]
 name = "clap"
-version = "3.2.5"
+version = "4.0.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d53da17d37dba964b9b3ecb5c5a1f193a2762c700e6829201e645b9381c99dc7"
+checksum = "06badb543e734a2d6568e19a40af66ed5364360b9226184926f89d229b4b4267"
 dependencies = [
  "atty",
  "bitflags",
  "clap_derive",
  "clap_lex",
- "indexmap",
  "once_cell",
  "strsim",
  "termcolor",
- "textwrap",
 ]
 
 [[package]]
 name = "clap_derive"
-version = "3.2.5"
+version = "4.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c11d40217d16aee8508cc8e5fde8b4ff24639758608e5374e731b53f85749fb9"
+checksum = "c42f169caba89a7d512b5418b09864543eeb4d497416c917d7137863bd2076ad"
 dependencies = [
  "heck",
  "proc-macro-error",
@@ -84,9 +82,9 @@ dependencies = [
 
 [[package]]
 name = "clap_lex"
-version = "0.2.2"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5538cd660450ebeb4234cfecf8f2284b844ffc4c50531e66d584ad5b91293613"
+checksum = "0d4198f73e42b4936b35b5bb248d81d2b595ecb170da0bac7655c54eedfa8da8"
 dependencies = [
  "os_str_bytes",
 ]
@@ -129,12 +127,6 @@ version = "1.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
 
-[[package]]
-name = "hashbrown"
-version = "0.12.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db0d4cf898abf0081f964436dc980e96670a0f36863e4b83aaacdb65c9d7ccc3"
-
 [[package]]
 name = "heck"
 version = "0.4.0"
@@ -150,16 +142,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "indexmap"
-version = "1.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6c6392766afd7964e2531940894cffe4bd8d7d17dbc3c1c4857040fd4b33bdb3"
-dependencies = [
- "autocfg",
- "hashbrown",
-]
-
 [[package]]
 name = "itertools"
 version = "0.10.3"
@@ -312,9 +294,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.39"
+version = "1.0.47"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c54b25569025b7fc9651de43004ae593a75ad88543b17178aa5e1b9c4f15f56f"
+checksum = "5ea3d908b0e36316caf9e9e2c4625cdde190a7e6f440d794667ed17a1855e725"
 dependencies = [
  "unicode-ident",
 ]
@@ -400,12 +382,6 @@ dependencies = [
  "winapi-util",
 ]
 
-[[package]]
-name = "textwrap"
-version = "0.15.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1141d4d61095b28419e22cb0bbf02755f5e54e0526f97f1e3d1d160e60885fb"
-
 [[package]]
 name = "typenum"
 version = "1.15.0"
diff --git a/Cargo.toml b/Cargo.toml
index d3c8ea2..12a6e24 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,6 +14,6 @@ csv = "1.1"
 # simba = { version = "0.7.1", features = ["partial_fixed_point_support"] }
 
 # num = "0.4"
-clap = { version = "3.1.18", features = ["derive"] }
+clap = { version = "4.0.17", features = ["derive"] }
 
 itertools = "0.10.3"
diff --git a/src/main.rs b/src/main.rs
index 5fc9da8..3d66f81 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -3,33 +3,33 @@ use std::path::PathBuf;
 use clap::{Parser, Subcommand};
 
 #[derive(Parser)]
-#[clap(name = "coster-rs")]
-#[clap(author = "Pivato M. <mpivato4@gmail.com>")]
-#[clap(version = "0.0.1")]
-#[clap(about = "Simple, fast, efficient costing tool", long_about = None)]
+#[command(name = "coster-rs", author = "Pivato M. <mpivato4@gmail.com>", version = "0.0.1", about = "Simple, fast, efficient costing tool", long_about = None)]
 struct Cli {
-    #[clap(subcommand)]
+    #[command(subcommand)]
     command: Commands,
 }
 
 #[derive(Subcommand)]
 enum Commands {
     move_money {
-        #[clap(short = 'r', long, parse(from_os_str), value_name = "FILE")]
+        #[arg(short = 'r', long, value_name = "FILE")]
         rules: PathBuf,
 
-        #[clap(short, long, parse(from_os_str), value_name = "FILE")]
-        output: Option<PathBuf>,
+        #[arg(short, long, value_name = "FILE")]
+        data: PathBuf,
+
+        #[arg(short, long, value_name = "FILE", default_value = "./output.csv")]
+        output: PathBuf,
     },
     allocate_overheads {
-        #[clap(short, long, parse(from_os_str), value_name = "FILE")]
+        #[arg(short, long, value_name = "FILE")]
         rules: PathBuf,
 
-        #[clap(short, long, parse(from_os_str), value_name = "FILE")]
+        #[arg(short, long, value_name = "FILE")]
         lines: PathBuf,
 
-        #[clap(short, long, parse(from_os_str), value_name = "FILE")]
-        output: Option<PathBuf>,
+        #[arg(short, long, value_name = "FILE", default_value = "./output.csv")]
+        output: PathBuf,
     },
 }
 
@@ -38,7 +38,7 @@ fn main() {
     let cli = Cli::parse();
 
     match cli.command {
-        Commands::move_money { rules, output } => move_money(),
+        Commands::move_money { rules, data, output } => move_money(rules, data, output),
         Commands::allocate_overheads {
             rules,
             lines,
@@ -47,8 +47,9 @@ fn main() {
     }
 }
 
-fn move_money() {
-    // read rules, for each rule, inspect the files and
+fn move_money(rules: PathBuf, data: PathBuf, output: PathBuf) {
+    // Read all rules/data into memory (can figure out an alternative way later)
+    
 }
 
 fn allocate_overheads() {}