diff --git a/Cargo.lock b/Cargo.lock
index 2f52279..f3b2d1b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -294,6 +294,17 @@ dependencies = [
  "syn 2.0.12",
 ]
 
+[[package]]
+name = "atty"
+version = "0.2.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
+dependencies = [
+ "hermit-abi 0.1.19",
+ "libc",
+ "winapi",
+]
+
 [[package]]
 name = "autocfg"
 version = "1.1.0"
@@ -411,13 +422,13 @@ dependencies = [
 
 [[package]]
 name = "colored"
-version = "2.0.4"
+version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2674ec482fbc38012cf31e6c42ba0177b431a0cb6f15fe40efa5aab1bda516f6"
+checksum = "b3616f750b84d8f0de8a58bda93e08e2a81ad3f523089b05f1dffecab48c6cbd"
 dependencies = [
- "is-terminal",
+ "atty",
  "lazy_static",
- "windows-sys 0.48.0",
+ "winapi",
 ]
 
 [[package]]
@@ -586,27 +597,6 @@ dependencies = [
  "cfg-if",
 ]
 
-[[package]]
-name = "errno"
-version = "0.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6b30f669a7961ef1631673d2766cc92f52d64f7ef354d4fe0ddfd30ed52f0f4f"
-dependencies = [
- "errno-dragonfly",
- "libc",
- "windows-sys 0.48.0",
-]
-
-[[package]]
-name = "errno-dragonfly"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa68f1b12764fab894d2755d2518754e71b4fd80ecfb822714a1206c2aab39bf"
-dependencies = [
- "cc",
- "libc",
-]
-
 [[package]]
 name = "fax"
 version = "0.2.0"
@@ -812,9 +802,9 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.3.20"
+version = "0.3.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "97ec8491ebaf99c8eaa73058b045fe58073cd6be7f596ac993ced0b0a0c01049"
+checksum = "5be7b54589b581f624f566bf5d8eb2bab1db736c51528720b6bd36b96b55924d"
 dependencies = [
  "bytes",
  "fnv",
@@ -843,18 +833,21 @@ checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
 
 [[package]]
 name = "hermit-abi"
-version = "0.2.6"
+version = "0.1.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee512640fe35acbfb4bb779db6f0d80704c2cacfa2e39b601ef3e3f47d1ae4c7"
+checksum = "62b467343b94ba476dcb2500d242dadbb39557df889310ac77c5d99100aaac33"
 dependencies = [
  "libc",
 ]
 
 [[package]]
 name = "hermit-abi"
-version = "0.3.2"
+version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "443144c8cdadd93ebf52ddb4056d257f5b52c04d3c804e657d19eb73fc33668b"
+checksum = "ee512640fe35acbfb4bb779db6f0d80704c2cacfa2e39b601ef3e3f47d1ae4c7"
+dependencies = [
+ "libc",
+]
 
 [[package]]
 name = "html5ever"
@@ -976,35 +969,12 @@ dependencies = [
  "adler32",
 ]
 
-[[package]]
-name = "io-lifetimes"
-version = "1.0.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eae7b9aee968036d54dce06cebaefd919e4472e753296daccd6d344e3e2df0c2"
-dependencies = [
- "hermit-abi 0.3.2",
- "libc",
- "windows-sys 0.48.0",
-]
-
 [[package]]
 name = "ipnet"
 version = "2.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "12b6ee2129af8d4fb011108c73d99a1b83a85977f23b82460c0ae2e25bb4b57f"
 
-[[package]]
-name = "is-terminal"
-version = "0.4.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "adcf93614601c8129ddf72e2d5633df827ba6551541c6d8c59520a371475be1f"
-dependencies = [
- "hermit-abi 0.3.2",
- "io-lifetimes",
- "rustix",
- "windows-sys 0.48.0",
-]
-
 [[package]]
 name = "istring"
 version = "0.3.3"
@@ -1059,6 +1029,12 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "json"
+version = "0.12.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "078e285eafdfb6c4b434e0d31e8cfcb5115b651496faca5749b88fafd4f23bfd"
+
 [[package]]
 name = "language-tags"
 version = "0.3.2"
@@ -1077,12 +1053,6 @@ version = "0.2.140"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "99227334921fae1a979cf0bfdfcc6b3e5ce376ef57e16fb6fb3ea2ed6095f80c"
 
-[[package]]
-name = "linux-raw-sys"
-version = "0.3.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ef53942eb7bf7ff43a617b3e2c1c4a5ecf5944a7c1bc12d7ee39bbb15e5c1519"
-
 [[package]]
 name = "local-channel"
 version = "0.1.3"
@@ -1192,7 +1162,7 @@ dependencies = [
  "libc",
  "log",
  "wasi 0.11.0+wasi-snapshot-preview1",
- "windows-sys 0.45.0",
+ "windows-sys",
 ]
 
 [[package]]
@@ -1258,7 +1228,7 @@ dependencies = [
  "libc",
  "redox_syscall",
  "smallvec",
- "windows-sys 0.45.0",
+ "windows-sys",
 ]
 
 [[package]]
@@ -1410,6 +1380,7 @@ dependencies = [
  "actix-web",
  "bytes",
  "futures",
+ "json",
  "lazy_static",
  "log",
  "pdf",
@@ -1633,20 +1604,6 @@ dependencies = [
  "semver",
 ]
 
-[[package]]
-name = "rustix"
-version = "0.37.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2aae838e49b3d63e9274e1c01833cc8139d3fec468c3b84688c628f44b1ae11d"
-dependencies = [
- "bitflags",
- "errno",
- "io-lifetimes",
- "libc",
- "linux-raw-sys",
- "windows-sys 0.45.0",
-]
-
 [[package]]
 name = "rustls"
 version = "0.20.8"
@@ -1804,14 +1761,15 @@ dependencies = [
 
 [[package]]
 name = "simple_logger"
-version = "4.2.0"
+version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2230cd5c29b815c9b699fb610b49a5ed65588f3509d9f0108be3a885da629333"
+checksum = "48047e77b528151aaf841a10a9025f9459da80ba820e425ff7eb005708a76dc7"
 dependencies = [
+ "atty",
  "colored",
  "log",
  "time",
- "windows-sys 0.42.0",
+ "winapi",
 ]
 
 [[package]]
@@ -2034,7 +1992,7 @@ dependencies = [
  "signal-hook-registry",
  "socket2",
  "tokio-macros",
- "windows-sys 0.45.0",
+ "windows-sys",
 ]
 
 [[package]]
@@ -2346,37 +2304,13 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
-[[package]]
-name = "windows-sys"
-version = "0.42.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7"
-dependencies = [
- "windows_aarch64_gnullvm 0.42.2",
- "windows_aarch64_msvc 0.42.2",
- "windows_i686_gnu 0.42.2",
- "windows_i686_msvc 0.42.2",
- "windows_x86_64_gnu 0.42.2",
- "windows_x86_64_gnullvm 0.42.2",
- "windows_x86_64_msvc 0.42.2",
-]
-
 [[package]]
 name = "windows-sys"
 version = "0.45.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0"
 dependencies = [
- "windows-targets 0.42.2",
-]
-
-[[package]]
-name = "windows-sys"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
-dependencies = [
- "windows-targets 0.48.1",
+ "windows-targets",
 ]
 
 [[package]]
@@ -2385,28 +2319,13 @@ version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8e5180c00cd44c9b1c88adb3693291f1cd93605ded80c250a75d472756b4d071"
 dependencies = [
- "windows_aarch64_gnullvm 0.42.2",
- "windows_aarch64_msvc 0.42.2",
- "windows_i686_gnu 0.42.2",
- "windows_i686_msvc 0.42.2",
- "windows_x86_64_gnu 0.42.2",
- "windows_x86_64_gnullvm 0.42.2",
- "windows_x86_64_msvc 0.42.2",
-]
-
-[[package]]
-name = "windows-targets"
-version = "0.48.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05d4b17490f70499f20b9e791dcf6a299785ce8af4d709018206dc5b4953e95f"
-dependencies = [
- "windows_aarch64_gnullvm 0.48.0",
- "windows_aarch64_msvc 0.48.0",
- "windows_i686_gnu 0.48.0",
- "windows_i686_msvc 0.48.0",
- "windows_x86_64_gnu 0.48.0",
- "windows_x86_64_gnullvm 0.48.0",
- "windows_x86_64_msvc 0.48.0",
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
 ]
 
 [[package]]
@@ -2415,84 +2334,42 @@ version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8"
 
-[[package]]
-name = "windows_aarch64_gnullvm"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91ae572e1b79dba883e0d315474df7305d12f569b400fcf90581b06062f7e1bc"
-
 [[package]]
 name = "windows_aarch64_msvc"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"
 
-[[package]]
-name = "windows_aarch64_msvc"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2ef27e0d7bdfcfc7b868b317c1d32c641a6fe4629c171b8928c7b08d98d7cf3"
-
 [[package]]
 name = "windows_i686_gnu"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f"
 
-[[package]]
-name = "windows_i686_gnu"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "622a1962a7db830d6fd0a69683c80a18fda201879f0f447f065a3b7467daa241"
-
 [[package]]
 name = "windows_i686_msvc"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060"
 
-[[package]]
-name = "windows_i686_msvc"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4542c6e364ce21bf45d69fdd2a8e455fa38d316158cfd43b3ac1c5b1b19f8e00"
-
 [[package]]
 name = "windows_x86_64_gnu"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36"
 
-[[package]]
-name = "windows_x86_64_gnu"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca2b8a661f7628cbd23440e50b05d705db3686f894fc9580820623656af974b1"
-
 [[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
 
-[[package]]
-name = "windows_x86_64_gnullvm"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7896dbc1f41e08872e9d5e8f8baa8fdd2677f29468c4e156210174edc7f7b953"
-
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
 
-[[package]]
-name = "windows_x86_64_msvc"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a515f5799fe4961cb532f983ce2b23082366b898e52ffbce459c86f67c8378a"
-
 [[package]]
 name = "winreg"
 version = "0.10.1"
diff --git a/Cargo.toml b/Cargo.toml
index 2104ce5..5f481de 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,13 +12,14 @@ actix-files = "0.6.0"
 actix-web = "4.0.1"
 bytes = "1.1"
 futures = "0.3"
+json = "0.12.4"
 lazy_static = "1.4"
 log = "0.4.16"
 pdf = "0.8"
 regex = "1.5.5"
 reqwest = { version = "0.11", features = ["rustls-tls", "stream"], default-features = false }
 scraper = "0.12"
-simple_logger = { version = "4.2", features = ["stderr"] }
+simple_logger = { version = "2.1.0", features = ["stderr"] }
 thiserror = "1"
 time = { version = "0.3.9", features = ["formatting", "macros", "parsing"] }
 tokio = { version = "1", features = ["full"] }
diff --git a/src/serialize.rs b/src/serialize.rs
index ac8ef56..5de17be 100644
--- a/src/serialize.rs
+++ b/src/serialize.rs
@@ -66,7 +66,7 @@ impl DataFormat for Csv {
     fn header(dataset: &DataSet) -> SerializationChunk {
         let mut header = String::from("Date");
         for column in dataset.columns.iter() {
-            write!(&mut header, r#","{}""#, column.replace('"', r#""""#))?;
+            write!(&mut header, ",{}", column)?;
         }
         writeln!(&mut header)?;
         Ok(header)
@@ -97,7 +97,7 @@ impl DataFormat for Json {
     fn header(dataset: &DataSet) -> SerializationChunk {
         let mut header = String::from(r#"{"columns":["Date""#);
         for column in dataset.columns.iter() {
-            write!(&mut header, ",{}", escaped_json_string(column.as_str()))?;
+            write!(&mut header, ",{}", json::stringify(column.as_str()))?;
         }
         write!(&mut header, r#"],"rows":["#)?;
         Ok(header)
@@ -115,7 +115,7 @@ impl DataFormat for Json {
         )?;
         for column in dataset.columns.iter() {
             if let Some(val) = datapoint.values.get(column) {
-                write!(&mut row, ",{}:{}", escaped_json_string(column.as_str()), val)?;
+                write!(&mut row, ",{}:{}", json::stringify(column.as_str()), val)?;
             }
         }
         row += "}";
@@ -125,20 +125,3 @@ impl DataFormat for Json {
     const ROW_SEPARATOR: &'static str = ",";
     const END: &'static str = "]}";
 }
-
-fn escaped_json_string(s: &str) -> String {
-    s.chars().fold(String::from(r#"""#), |mut acc, c| {
-        match c {
-            '"' => acc.push_str(r#"\""#),
-            '\\' => acc.push_str(r"\\"),
-            '\t' => acc.push_str(r"\t"),
-            '\n' => acc.push_str(r"\n"),
-            _ => if c.is_ascii_control() {
-                acc.push_str(&format!(r"\u{:04X}", c as u32))
-            } else {
-                acc.push(c)
-            }
-        }
-        acc
-    }) + r#"""#
-}