diff --git a/Cargo.lock b/Cargo.lock
index 732aba88..70965393 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -622,9 +622,9 @@ checksum = "52051878f80a721bb68ebfbc930e07b65ba72f2da88968ea5c06fd6ca3d3a127"
 
 [[package]]
 name = "flate2"
-version = "1.1.4"
+version = "1.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc5a4e564e38c699f2880d3fda590bedc2e69f3f84cd48b457bd892ce61d0aa9"
+checksum = "bfe33edd8e85a12a67454e37f8c75e730830d83e313556ab9ebf9ee7fbeb3bfb"
 dependencies = [
  "crc32fast",
  "libz-rs-sys",
diff --git a/samply/Cargo.toml b/samply/Cargo.toml
index bf673330..8a6560e9 100644
--- a/samply/Cargo.toml
+++ b/samply/Cargo.toml
@@ -34,7 +34,7 @@ tempfile = "3.13"
 uuid = { version = "1.11", features = ["v4"] }
 percent-encoding = "2.1.0"
 libc = "0.2"
-flate2 = "1.0"
+flate2 = "1.1"
 opener = { version = "0.8", default-features = false }
 rand = "0.9"
 nix-base32 = "0.2.0"
@@ -64,7 +64,7 @@ crossbeam-channel = "0.5.15"
 
 mach2 = "0.5"
 lazy_static = "1.5.0"
-flate2 = "1.0"
+flate2 = "1.1"
 sysctl = "0.7.1"
 plist = "1.7.0"
 
diff --git a/tools/benchmarks/Cargo.toml b/tools/benchmarks/Cargo.toml
index e4b047f9..2d164674 100644
--- a/tools/benchmarks/Cargo.toml
+++ b/tools/benchmarks/Cargo.toml
@@ -18,6 +18,6 @@ anyhow = "1"
 tempfile = "3.10.1"
 futures = "0.3.5"
 cab = "0.6.0"
-flate2 = "1.0"
+flate2 = "1.1"
 tar = "0.4.41"
 bzip2 = "0.6.0"
diff --git a/wholesym/Cargo.toml b/wholesym/Cargo.toml
index 8c7f6c7b..c7c4a0a6 100644
--- a/wholesym/Cargo.toml
+++ b/wholesym/Cargo.toml
@@ -59,7 +59,7 @@ core-foundation = "0.10"
 # So this is a (somewhat brittle) way to turn on the zlib-rs feature in
 # async-compression's use of flate2.
 [dependencies.flate2]
-version = "1.0.17"
+version = "1.1.5"
 features = ["zlib-rs"]
 
 [dev-dependencies]