diff --git a/downstairs-api/Cargo.toml b/downstairs-api/Cargo.toml
index 92cb47904..a883adc7b 100644
--- a/downstairs-api/Cargo.toml
+++ b/downstairs-api/Cargo.toml
@@ -3,7 +3,7 @@ name = "crucible-downstairs-api"
 version = "0.1.0"
 license = "MPL-2.0"
 edition = "2024"
-rust-version = "1.85"
+rust-version = "1.93"
 
 [dependencies]
 crucible-common.workspace = true
diff --git a/downstairs-types/Cargo.toml b/downstairs-types/Cargo.toml
index ec74cb872..26494ad90 100644
--- a/downstairs-types/Cargo.toml
+++ b/downstairs-types/Cargo.toml
@@ -3,7 +3,7 @@ name = "crucible-downstairs-types"
 version = "0.1.0"
 license = "MPL-2.0"
 edition = "2024"
-rust-version = "1.85"
+rust-version = "1.93"
 
 [dependencies]
 crucible-downstairs-types-versions.workspace = true
diff --git a/downstairs/Cargo.toml b/downstairs/Cargo.toml
index f8425beb0..7afeb7a9c 100644
--- a/downstairs/Cargo.toml
+++ b/downstairs/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.0.1"
 authors = ["Joshua M. Clulow <jmc@oxide.computer>", "Alan Hanson <alan@oxide.computer"]
 license = "MPL-2.0"
 edition = "2024"
-rust-version = "1.85"
+rust-version = "1.93"
 
 [dependencies]
 anyhow.workspace = true
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 2ce412d5a..99e619bb8 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,3 +1,3 @@
 [toolchain]
-channel = "1.90.0"
+channel = "1.98.1"
 profile = "default"
diff --git a/upstairs/Cargo.toml b/upstairs/Cargo.toml
index 6a19575b0..61fe23f35 100644
--- a/upstairs/Cargo.toml
+++ b/upstairs/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.0.1"
 authors = ["Joshua M. Clulow <jmc@oxide.computer>", "Alan Hanson <alan@oxide.computer"]
 license = "MPL-2.0"
 edition = "2024"
-rust-version = "1.85"
+rust-version = "1.93"
 
 [lib]
 name = "crucible"