diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6ea3ba2..ef3eac1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ env:
   VCPKG_DOWNLOADS: C:\vcpkg\downloads
   VCPKG_FEATURE_FLAGS: binarycaching
   VCPKG_BINARY_SOURCES: clear;x-gha,readwrite
-  RUST_TOOLCHAIN: "1.92"
+  RUST_TOOLCHAIN: "1.94"
 
 jobs:
   linux-x64:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 7d7ee6a..4d69cb7 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -21,7 +21,7 @@ env:
   VCPKG_DOWNLOADS: C:\vcpkg\downloads
   VCPKG_FEATURE_FLAGS: binarycaching
   VCPKG_BINARY_SOURCES: clear;x-gha,readwrite
-  RUST_TOOLCHAIN: "1.92"
+  RUST_TOOLCHAIN: "1.94"
 
 jobs:
   # ──────────────── Linux (via Makefile) ────────────────
diff --git a/AGENTS.md b/AGENTS.md
index 4d39dbc..686fb80 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -39,8 +39,8 @@ Key capabilities:
 
 ## Toolchain and Environment
 - Shell assumptions in build scripts: `bash` with `set -eu -o pipefail`
-- Workspace minimum Rust version: `1.90` (`Cargo.toml`)
-- `make check-rust` enforces `>= 1.92.0` for build targets
+- Workspace minimum Rust version: `1.94` (`Cargo.toml`)
+- `make check-rust` enforces `>= 1.94.1` for build targets
 - Windows Makefile targets (`windows-x64`, `windows-arm64`) expect an MSYS2 environment with `pacman` available.
 - Prefer `rg` and `rg --files` for fast code/file search.
 
diff --git a/Cargo.toml b/Cargo.toml
index c6a1811..2ce2cdd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,7 @@ resolver = "2"
 
 [workspace.package]
 edition = "2021"
-rust-version = "1.90"
+rust-version = "1.94"
 license = "Apache-2.0"
 authors = ["Mick Grove <mick.grove@mongodb.com>"]
 homepage = "https://github.com/mongodb/kingfisher"
diff --git a/Makefile b/Makefile
index dfe7ac0..cf35bb0 100644
--- a/Makefile
+++ b/Makefile
@@ -158,11 +158,11 @@ setup-zig:
 ubuntu-x64: setup-zig   # ensures Zig & cargo-zigbuild exist
 	@echo "Checking Rust toolchain…"
 	@$(MAKE) check-rust || { \
-            echo "🦀  Installing Rust 1.92.0 …"; \
+            echo "🦀  Installing Rust 1.94.1 …"; \
 	    curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y; \
 	    . $$HOME/.cargo/env; \
-            rustup toolchain install 1.92.0; \
-            rustup default 1.92.0; \
+            rustup toolchain install 1.94.1; \
+            rustup default 1.94.1; \
 	}
 
 	@echo "📦  Installing build dependencies (musl, cmake, etc.)…"
@@ -198,11 +198,11 @@ ubuntu-x64: setup-zig   # ensures Zig & cargo-zigbuild exist
 ubuntu-arm64: setup-zig   # ensures Zig & cargo-zigbuild exist
 	@echo "Checking Rust toolchain…"
 	@$(MAKE) check-rust || { \
-            echo "🦀  Installing Rust 1.92.0 …"; \
+            echo "🦀  Installing Rust 1.94.1 …"; \
 	    curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y; \
 	    . $$HOME/.cargo/env; \
-            rustup toolchain install 1.92.0; \
-            rustup default 1.92.0; \
+            rustup toolchain install 1.94.1; \
+            rustup default 1.94.1; \
 	}
 
 	@echo "📦  Installing build dependencies (musl, cmake, etc.)…"
@@ -607,7 +607,7 @@ windows-test: windows-test-x64 windows-test-arm64
 linux-x64: check-docker create-dockerignore
 	@mkdir -p target/release
 	docker run --platform linux/amd64 --rm \
-          -v "$$(pwd):/src" -w /src rust:1.92-alpine sh -eu -c '\
+          -v "$$(pwd):/src" -w /src rust:1.94-alpine sh -eu -c '\
 		apk add --no-cache \
 		    musl-dev \
 		    gcc g++ make cmake pkgconfig \
@@ -636,7 +636,7 @@ linux-x64: check-docker create-dockerignore
 linux-arm64: check-docker create-dockerignore
 	@mkdir -p target/release
 	docker run --platform linux/arm64 --rm \
-          -v "$$(pwd):/src" -w /src rust:1.92-alpine sh -eu -c '\
+          -v "$$(pwd):/src" -w /src rust:1.94-alpine sh -eu -c '\
 		apk add --no-cache \
 		    musl-dev \
 		    gcc g++ make cmake pkgconfig \
@@ -749,7 +749,7 @@ check-rust:
 	  echo "Rust not found."; \
 	  exit 1; \
 	fi; \
-        required=1.92.0; \
+        required=1.94.1; \
 	if [ $$(printf '%s\n' "$$required" "$$version" | sort -V | head -n1) != "$$required" ]; then \
 	  echo "Rust version $$version is older than required $$required."; \
 	  exit 1; \