diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index 09f4462..c825e1c 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -1,3 +1,3 @@
-FROM rust:1.85.1
+FROM rust:1.86
 ARG DEBIAN_FRONTEND=noninteractive
 RUN apt-get update && apt-get install -yq curl build-essential jq openssl libssl-dev libpython3-dev python3.11-venv python3-pip
diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 9c83e9b..4d6a1f4 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -23,7 +23,7 @@ jobs:
         hpke:
           - rust-hpke
         rust:
-          - 1.85.1
+          - 1.86
           - stable
 
     steps:
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 8305a38..16ae79d 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM rust:1.85.1 AS builder
+FROM rust:1.86 AS builder
 
 ARG DEBIAN_FRONTEND=noninteractive
 RUN apt-get update && apt-get install -yq openssl libssl-dev