diff --git a/Cargo.lock b/Cargo.lock
index dda757b..6504d82 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -183,6 +183,9 @@ name = "cc"
 version = "1.0.79"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "50d30906286121d95be3d479533b458f87493b30a4b5f79a607db8f5d11aa91f"
+dependencies = [
+ "jobserver",
+]
 
 [[package]]
 name = "cexpr"
@@ -887,6 +890,15 @@ version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "453ad9f582a441959e5f0d088b02ce04cfe8d51a8eaf077f12ac6d3e94164ca6"
 
+[[package]]
+name = "jobserver"
+version = "0.1.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "936cfd212a0155903bcbc060e316fb6cc7cbf2e1907329391ebadc1fe0ce77c2"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "js-sys"
 version = "0.3.63"
@@ -1135,9 +1147,9 @@ dependencies = [
 
 [[package]]
 name = "oscar-io"
-version = "0.2.4"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "df3129df1afe61e0826c2a861fcc59c0772b33f808283d4ad6a652f36f3007a0"
+checksum = "c8dec9b3817e0004a8e4cfbf6a5c9edcdc1ac2da999b1316b96fa7a08480097b"
 dependencies = [
  "avro-rs",
  "flate2",
@@ -1147,6 +1159,7 @@ dependencies = [
  "serde",
  "serde_json",
  "warc",
+ "zstd",
 ]
 
 [[package]]
@@ -1236,6 +1249,12 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
+[[package]]
+name = "pkg-config"
+version = "0.3.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26072860ba924cbfa98ea39c8c19b4dd6a4a25423dbdf219c1eca91aa0cf6964"
+
 [[package]]
 name = "plotters"
 version = "0.3.4"
@@ -2769,3 +2788,33 @@ dependencies = [
  "syn 1.0.109",
  "synstructure",
 ]
+
+[[package]]
+name = "zstd"
+version = "0.12.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a27595e173641171fc74a1232b7b1c7a7cb6e18222c11e9dfb9888fa424c53c"
+dependencies = [
+ "zstd-safe",
+]
+
+[[package]]
+name = "zstd-safe"
+version = "6.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee98ffd0b48ee95e6c5168188e44a54550b1564d9d530ee21d5f0eaed1069581"
+dependencies = [
+ "libc",
+ "zstd-sys",
+]
+
+[[package]]
+name = "zstd-sys"
+version = "2.0.8+zstd.1.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5556e6ee25d32df2586c098bbfa278803692a20d0ab9565e049480d52707ec8c"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+]
diff --git a/Cargo.toml b/Cargo.toml
index a04bfd8..ddb0e06 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -45,7 +45,7 @@ unic-ucd = "0.9.0"
 oxilangtag = {version="0.1.3", features=["serde"]}
 language-tags = "0.3.2"
 lazy_static = "1.4.0"
-oscar-io = "0.2.2"
+oscar-io = "0.4.0"
 #tlsh = {git="https://github.com/Uinelj/tlsh-rs", branch="fix-q3-panic"}
 tlsh-fixed = "0.1.1"