diff --git a/Cargo.lock b/Cargo.lock
index fef3b572..1585faa7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -794,9 +794,9 @@ dependencies = [
 
 [[package]]
 name = "flate2"
-version = "1.0.26"
+version = "1.0.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3b9429470923de8e8cbd4d2dc513535400b4b3fef0319fb5c4e1f520a7bef743"
+checksum = "c6c98ee8095e9d1dcbf2fcc6d95acccb90d1c81db1e44725c6a984b1dbdfb010"
 dependencies = [
  "crc32fast",
  "miniz_oxide",
diff --git a/crates/esthri-test/Cargo.toml b/crates/esthri-test/Cargo.toml
index 46a4c577..51d58bb9 100644
--- a/crates/esthri-test/Cargo.toml
+++ b/crates/esthri-test/Cargo.toml
@@ -19,7 +19,7 @@ blocking = []
 esthri-internals = { path = "../esthri-internals", version = "10.0.3", default-features = false }
 chrono = "0.4"
 env_logger = "0.10"
-flate2 = "1.0.26"
+flate2 = "1.0.27"
 hyper = "0.14"
 md-5 = "0.10.5"
 once_cell = "1.7"