diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fc8f649..089c386 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,8 +6,8 @@ on:
 
 env:
   # Allow automated checks.
-  BOOST_VERSION: 1.86.0
-  BOOST_URL: https://archives.boost.io/release/1.86.0/source/boost_1_86_0.tar.gz
+  BOOST_VERSION: 1.87.0
+  BOOST_URL: https://archives.boost.io/release/1.87.0/source/boost_1_87_0.tar.gz
 
 jobs:
   main: