diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 69eb7a4c..65156c9c 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -9,7 +9,7 @@ jobs:
   build:
     strategy:
       matrix:
-        rust-toolchain: ["1.83"]
+        rust-toolchain: ["1.85"]
         os: [ubuntu-24.04, macos-14, windows-2022]
         arch: [amd64, arm64]
         exclude:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 066659bf..df87f58d 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -20,7 +20,7 @@ jobs:
       with:
         submodules: true
     - name: Install Rust
-      run: rustup update --no-self-update 1.83 && rustup default 1.83
+      run: rustup update --no-self-update 1.85 && rustup default 1.85
       shell: bash
     - name: Add wasm32-wasip1 Rust target
       run: rustup target add wasm32-wasip1
@@ -63,7 +63,7 @@ jobs:
       with:
         submodules: true
     - name: Install Rust
-      run: rustup update --no-self-update 1.83 && rustup default 1.83
+      run: rustup update --no-self-update 1.85 && rustup default 1.85
       shell: bash
     - name: Add wasm32-wasip1 Rust target
       run: rustup target add wasm32-wasip1
@@ -89,7 +89,7 @@ jobs:
         with:
           submodules: true
       - name: Install Rust
-        run: rustup update 1.83 && rustup default 1.83
+        run: rustup update 1.85 && rustup default 1.85
         shell: bash
       - name: Check crates can be published
         run: make package-check
diff --git a/Cargo.toml b/Cargo.toml
index 731744d7..08fca238 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,7 +5,7 @@ members = [
     "crates/adapter",
     "crates/adapter/byte-array-literals",
 ]
-resolver = "2"
+resolver = "3"
 
 # Exclude our integration test fixtures, which need to be compiled to wasm
 # (managed by the Makefile)
diff --git a/cli/Cargo.toml b/cli/Cargo.toml
index ad2b766d..0a1f0ed1 100644
--- a/cli/Cargo.toml
+++ b/cli/Cargo.toml
@@ -24,8 +24,8 @@ include = [
     "../doc/logo.png",
     "src/**/*"
 ]
-# MSRV: 1.78 for wasm32-wasip1
-rust-version = "1.78"
+# MSRV: 1.85 for 2024 edition
+rust-version = "1.85"
 
 [[bin]]
 name = "viceroy"
diff --git a/rust-toolchain b/rust-toolchain
index 74c280fb..c4f7465a 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-1.83
+1.85