diff --git a/.gitignore b/.gitignore
index 5ade7d0..a744eac 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,4 @@
 /flate2-1.0.18.crate
 /flate2-1.0.19.crate
 /flate2-1.0.20.crate
+/flate2-1.0.21.crate
diff --git a/flate2-fix-metadata.diff b/flate2-fix-metadata.diff
index 024d1bb..e86e055 100644
--- a/flate2-fix-metadata.diff
+++ b/flate2-fix-metadata.diff
@@ -1,12 +1,12 @@
---- flate2-1.0.20/Cargo.toml	2021-01-29T15:05:11+00:00
-+++ flate2-1.0.20/Cargo.toml	2021-03-03T23:58:37.466427+00:00
+--- flate2-1.0.21/Cargo.toml	1970-01-01T00:00:01+00:00
++++ flate2-1.0.21/Cargo.toml	2021-08-31T12:20:12.959895+00:00
 @@ -25,10 +25,6 @@
  repository = "https://github.com/rust-lang/flate2-rs"
  [dependencies.cfg-if]
  version = "1.0.0"
 -
 -[dependencies.cloudflare-zlib-sys]
--version = "0.2.0"
+-version = "0.3.0"
 -optional = true
  
  [dependencies.crc32fast]
diff --git a/rust-flate2.spec b/rust-flate2.spec
index 7aec1d3..06faf66 100644
--- a/rust-flate2.spec
+++ b/rust-flate2.spec
@@ -1,11 +1,11 @@
-# Generated by rust2rpm 16
+# Generated by rust2rpm 18
 %bcond_without check
 %global debug_package %{nil}
 
 %global crate flate2
 
 Name:           rust-%{crate}
-Version:        1.0.20
+Version:        1.0.21
 Release:        %autorelease
 Summary:        DEFLATE compression and decompression exposed as Read/BufRead/Write streams
 
diff --git a/sources b/sources
index 1fb9554..4d25cc9 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (flate2-1.0.20.crate) = 1415cba53183b7ae0f3396859186b92001060a78fbee10dd0dd4c8a93119aeb78bd8d782735c292badc1ae6d369badc6fa1a0105835614a6f70e82b080d8549b
+SHA512 (flate2-1.0.21.crate) = 3711f6479135bc5828aebf7ffd9036776abaac03595af2a034a16c6cccf68278e78291fb8110aadfbea3ecfeab848d6da60f02f40b002710555c3a0e2b1c6b73