diff --git a/Cargo.lock b/Cargo.lock
index 06654b5..275c941 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -61,9 +61,9 @@ checksum = "37fa13df2292ecb479ec23aa06f4507928bef07839be9ef15281411076629431"
 
 [[package]]
 name = "byteorder"
-version = "1.3.4"
+version = "1.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08c48aae112d48ed9f069b33538ea9e3e90aa263cfa3d1c24309612b1f7472de"
+checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
 
 [[package]]
 name = "cfg-if"
@@ -98,11 +98,11 @@ dependencies = [
 
 [[package]]
 name = "crc32fast"
-version = "1.2.0"
+version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba125de2af0df55319f41944744ad91c71113bf74a4646efff39afe1f6842db1"
+checksum = "b540bd8bc810d3885c6ea91e2018302f68baba2129ab3e88f32389ee9370880d"
 dependencies = [
- "cfg-if 0.1.10",
+ "cfg-if 1.0.0",
 ]
 
 [[package]]
@@ -223,14 +223,14 @@ checksum = "a357d28ed41a50f9c765dbfe56cbc04a64e53e5fc58ba79fbc34c10ef3df831f"
 
 [[package]]
 name = "flate2"
-version = "1.0.13"
+version = "1.0.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6bd6d6f4752952feb71363cffc9ebac9411b75b87c6ab6058c40c8900cf43c0f"
+checksum = "1e6988e897c1c9c485f43b47a529cef42fde0547f9d8d41a7062518f1d8fc53f"
 dependencies = [
- "cfg-if 0.1.10",
+ "cfg-if 1.0.0",
  "crc32fast",
  "libc",
- "miniz_oxide 0.3.6",
+ "miniz_oxide 0.4.3",
 ]
 
 [[package]]
@@ -439,12 +439,6 @@ dependencies = [
  "miniz_oxide 0.3.6",
 ]
 
-[[package]]
-name = "podio"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "780fb4b6698bbf9cf2444ea5d22411cef2953f0824b98f33cf454ec5615645bd"
-
 [[package]]
 name = "pretty_assertions"
 version = "1.2.0"
@@ -764,11 +758,11 @@ dependencies = [
 
 [[package]]
 name = "zip"
-version = "0.5.6"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "58287c28d78507f5f91f2a4cf1e8310e2c76fd4c6932f93ac60fd1ceb402db7d"
+checksum = "e6fa4aa90e99fb8d701bda16fb040d8ed2f9c7176fb44de750e880a74b580315"
 dependencies = [
+ "byteorder",
  "crc32fast",
  "flate2",
- "podio",
 ]
diff --git a/docx-core/Cargo.toml b/docx-core/Cargo.toml
index d2af7b6..a469002 100644
--- a/docx-core/Cargo.toml
+++ b/docx-core/Cargo.toml
@@ -23,7 +23,7 @@ path = "src/lib.rs"
 xml-rs = "0.8.4"
 wasm-bindgen = "0.2.78"
 thiserror = "1.0"
-zip = { version = "0.5.6", default-features = false, features = ["deflate"] }
+zip = { version = "0.6.0", default-features = false, features = ["deflate"] }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 base64 = "0.13.0"