diff --git a/Cargo.lock b/Cargo.lock
index c7ebcc4bb..43df6a9b7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -714,12 +714,12 @@ dependencies = [
 
 [[package]]
 name = "rtt-logger"
-version = "0.2.1"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2f42c228caf6eab0fe8374ef3988b9db07dbe0b12b65b4a02aaacb48b03354e"
+checksum = "7352ea2ea8c477bc6286674554dbb3487ec70472188f0939f0868f6e84921fd7"
 dependencies = [
  "log",
- "rtt-target",
+ "rtt-target 0.4.0",
 ]
 
 [[package]]
@@ -728,7 +728,16 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "065d6058bb1204f51a562a67209e1817cf714759d5cf845aa45c75fa7b0b9d9b"
 dependencies = [
- "cortex-m 0.7.7",
+ "ufmt-write",
+]
+
+[[package]]
+name = "rtt-target"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3afa12c77ba1b9bf560e4039a9b9a08bb9cde0e9e6923955eeb917dd8d5cf303"
+dependencies = [
+ "critical-section",
  "ufmt-write",
 ]
 
@@ -920,7 +929,7 @@ dependencies = [
  "rand_core",
  "rand_xorshift",
  "rtt-logger",
- "rtt-target",
+ "rtt-target 0.3.1",
  "serde",
  "serde-json-core",
  "shared-bus 0.3.1",
diff --git a/Cargo.toml b/Cargo.toml
index 44333108b..294ef0667 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -50,7 +50,7 @@ ad9959 = { path = "ad9959", version = "0.2.1" }
 mcp230xx = "1.0"
 mutex-trait = "0.2"
 fugit = "0.3"
-rtt-logger = "0.2"
+rtt-logger = "0.3"
 systick-monotonic = "1.0"
 mono-clock = "0.1"
 spin = { version = "0.9", default-features = false, features = ["spin_mutex"]}