diff --git a/Cargo.lock b/Cargo.lock
index 2f6f73a..41fdfc8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2254,7 +2254,7 @@ dependencies = [
 
 [[package]]
 name = "rd-agent"
-version = "2.2.0"
+version = "2.2.1"
 dependencies = [
  "anyhow",
  "chrono",
@@ -2282,7 +2282,7 @@ dependencies = [
 
 [[package]]
 name = "rd-agent-intf"
-version = "2.2.0"
+version = "2.2.1"
 dependencies = [
  "anyhow",
  "chrono",
@@ -2298,7 +2298,7 @@ dependencies = [
 
 [[package]]
 name = "rd-hashd"
-version = "2.2.0"
+version = "2.2.1"
 dependencies = [
  "anyhow",
  "chrono",
@@ -2324,7 +2324,7 @@ dependencies = [
 
 [[package]]
 name = "rd-hashd-intf"
-version = "2.2.0"
+version = "2.2.1"
 dependencies = [
  "anyhow",
  "chrono",
@@ -2336,7 +2336,7 @@ dependencies = [
 
 [[package]]
 name = "rd-util"
-version = "2.2.0"
+version = "2.2.1"
 dependencies = [
  "anyhow",
  "chrono",
@@ -2457,7 +2457,7 @@ dependencies = [
 
 [[package]]
 name = "resctl-bench"
-version = "2.2.0"
+version = "2.2.1"
 dependencies = [
  "anyhow",
  "aws-config",
@@ -2500,7 +2500,7 @@ dependencies = [
 
 [[package]]
 name = "resctl-bench-intf"
-version = "2.2.0"
+version = "2.2.1"
 dependencies = [
  "anyhow",
  "clap",
@@ -2513,7 +2513,7 @@ dependencies = [
 
 [[package]]
 name = "resctl-demo"
-version = "2.2.0"
+version = "2.2.1"
 dependencies = [
  "anyhow",
  "chrono",
diff --git a/rd-agent-intf/Cargo.toml b/rd-agent-intf/Cargo.toml
index 5ae367d..aad84d6 100644
--- a/rd-agent-intf/Cargo.toml
+++ b/rd-agent-intf/Cargo.toml
@@ -1,7 +1,7 @@
 # Copyright (c) Facebook, Inc. and its affiliates
 [package]
 name = "rd-agent-intf"
-version = "2.2.0"
+version = "2.2.1"
 authors = ["Tejun Heo <tj@kernel.org>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,8 +12,8 @@ readme = "README.md"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-rd-util = { path = "../rd-util", version = "^2.1" }
-rd-hashd-intf = { path = "../rd-hashd-intf", version = "^2.1" }
+rd-util = { path = "../rd-util", version = "2.2.1" }
+rd-hashd-intf = { path = "../rd-hashd-intf", version = "2.1.1" }
 
 anyhow = "^1.0"
 clap = "^2.33"
diff --git a/rd-agent/Cargo.toml b/rd-agent/Cargo.toml
index 4f3e896..9640830 100644
--- a/rd-agent/Cargo.toml
+++ b/rd-agent/Cargo.toml
@@ -1,7 +1,7 @@
 # Copyright (c) Facebook, Inc. and its affiliates
 [package]
 name = "rd-agent"
-version = "2.2.0"
+version = "2.2.1"
 authors = ["Tejun Heo <tj@kernel.org>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,9 +12,9 @@ readme = "README.md"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-rd-util = { path = "../rd-util", version = "^2.1" }
-rd-hashd-intf = { path = "../rd-hashd-intf", version = "^2.1" }
-rd-agent-intf = { path = "../rd-agent-intf", version = "^2.1" }
+rd-util = { path = "../rd-util", version = "2.2.1" }
+rd-hashd-intf = { path = "../rd-hashd-intf", version = "2.2.1" }
+rd-agent-intf = { path = "../rd-agent-intf", version = "2.2.1" }
 
 anyhow = "^1.0"
 chrono = { version = "^0.4", features = ["serde"] }
diff --git a/rd-hashd-intf/Cargo.toml b/rd-hashd-intf/Cargo.toml
index 81bdee6..05e09d6 100644
--- a/rd-hashd-intf/Cargo.toml
+++ b/rd-hashd-intf/Cargo.toml
@@ -1,7 +1,7 @@
 # Copyright (c) Facebook, Inc. and its affiliates
 [package]
 name = "rd-hashd-intf"
-version = "2.2.0"
+version = "2.2.1"
 authors = ["Tejun Heo <tj@kernel.org>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,7 +12,7 @@ readme = "README.md"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-rd-util = { path = "../rd-util", version = "^2.1" }
+rd-util = { path = "../rd-util", version = "2.2.1" }
 
 anyhow = "^1.0"
 chrono = { version = "^0.4", features = ["serde"] }
diff --git a/rd-hashd/Cargo.toml b/rd-hashd/Cargo.toml
index cbd6e54..7572eac 100644
--- a/rd-hashd/Cargo.toml
+++ b/rd-hashd/Cargo.toml
@@ -1,7 +1,7 @@
 # Copyright (c) Facebook, Inc. and its affiliates
 [package]
 name = "rd-hashd"
-version = "2.2.0"
+version = "2.2.1"
 authors = ["Tejun Heo <tj@kernel.org>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -10,8 +10,8 @@ description = "Latency-sensitive pseudo workload for resctl-demo"
 readme = "README.md"
 
 [dependencies]
-rd-util = { path = "../rd-util", version = "^2.1" }
-rd-hashd-intf = { path = "../rd-hashd-intf", version = "^2.1" }
+rd-util = { path = "../rd-util", version = "2.2.1" }
+rd-hashd-intf = { path = "../rd-hashd-intf", version = "2.2.1" }
 
 anyhow = "^1.0"
 chrono = { version = "^0.4", features = ["serde"] }
diff --git a/rd-util/Cargo.toml b/rd-util/Cargo.toml
index 24a282b..f4010c7 100644
--- a/rd-util/Cargo.toml
+++ b/rd-util/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rd-util"
-version = "2.2.0"
+version = "2.2.1"
 authors = ["Tejun Heo <tj@kernel.org>"]
 edition = "2018"
 license = "Apache-2.0"
diff --git a/resctl-bench-intf/Cargo.toml b/resctl-bench-intf/Cargo.toml
index 44efe44..a7eb19c 100644
--- a/resctl-bench-intf/Cargo.toml
+++ b/resctl-bench-intf/Cargo.toml
@@ -1,7 +1,7 @@
 # Copyright (c) Facebook, Inc. and its affiliates
 [package]
 name = "resctl-bench-intf"
-version = "2.2.0"
+version = "2.2.1"
 authors = ["Tejun Heo <tj@kernel.org>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,8 +14,8 @@ readme = "README.md"
 lambda = []
 
 [dependencies]
-rd-util = { path = "../rd-util", version = "^2.1" }
-rd-agent-intf = { path = "../rd-agent-intf", version = "^2.1" }
+rd-util = { path = "../rd-util", version = "2.2.1" }
+rd-agent-intf = { path = "../rd-agent-intf", version = "2.2.1" }
 
 anyhow = "^1.0"
 clap = "^2.33"
diff --git a/resctl-bench/Cargo.toml b/resctl-bench/Cargo.toml
index b00424e..4f28dec 100644
--- a/resctl-bench/Cargo.toml
+++ b/resctl-bench/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "resctl-bench"
-version = "2.2.0"
+version = "2.2.1"
 authors = ["Tejun Heo <tj@kernel.org>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -13,10 +13,10 @@ description = "Whole system resource control benchmarks with realistic scenarios
 lambda = ["resctl-bench-intf/lambda", "aws-config", "aws-sdk-s3", "aws-sdk-ssm", "octocrab", "lambda_runtime", "md5", "tokio"]
 
 [dependencies]
-rd-util = { path = "../rd-util", version = "^2.1" }
-rd-hashd-intf = { path = "../rd-hashd-intf", version = "^2.1" }
-rd-agent-intf = { path = "../rd-agent-intf", version = "^2.1" }
-resctl-bench-intf = { path = "../resctl-bench-intf", version = "^2.1" }
+rd-util = { path = "../rd-util", version = "2.2.1" }
+rd-hashd-intf = { path = "../rd-hashd-intf", version = "2.2.1" }
+rd-agent-intf = { path = "../rd-agent-intf", version = "2.2.1" }
+resctl-bench-intf = { path = "../resctl-bench-intf", version = "2.2.1" }
 
 # For the lambda feature. We prefer rustls for all the crates we use to avoid incompatibilities.
 aws-config = { version = "0.6", optional = true, features = ["rustls", "rt-tokio"], default-features = false  }
diff --git a/resctl-demo/Cargo.toml b/resctl-demo/Cargo.toml
index 11feaf9..355c2ff 100644
--- a/resctl-demo/Cargo.toml
+++ b/resctl-demo/Cargo.toml
@@ -1,7 +1,7 @@
 # Copyright (c) Facebook, Inc. and its affiliates
 [package]
 name = "resctl-demo"
-version = "2.2.0"
+version = "2.2.1"
 authors = ["Tejun Heo <tj@kernel.org>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,9 +12,9 @@ readme = "README.md"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-rd-util = { path = "../rd-util", version = "^2.1" }
-rd-hashd-intf = { path = "../rd-hashd-intf", version = "^2.1" }
-rd-agent-intf = { path = "../rd-agent-intf", version = "^2.1" }
+rd-util = { path = "../rd-util", version = "2.2.1" }
+rd-hashd-intf = { path = "../rd-hashd-intf", version = "2.2.1" }
+rd-agent-intf = { path = "../rd-agent-intf", version = "2.2.1" }
 
 anyhow = "^1.0"
 chrono = { version = "^0.4", features = ["serde"] }