diff --git a/cmake/hashes.cmake b/cmake/hashes.cmake
index c6674b9a..66669e95 100644
--- a/cmake/hashes.cmake
+++ b/cmake/hashes.cmake
@@ -38,5 +38,5 @@ set(STDUUID_HASH b1176597e789531c38481acbbed2a6894ad419aab0979c10410d59eb0ebf40d
 set(JSON_HASH 0d8ef5af7f9794e3263480193c491549b2ba6cc74bb018906202ada498a79406)
 set(NANA_HASH 56f7b1ed006c750fccf8ef15ab1e83f96751f2dfdcb68d93e5f712a6c9b58bcb)
 set(PKG_CONFIG_HASH 6fc69c01688c9458a57eb9a1664c9aba372ccda420a02bf4429fe610e7e7d591)
-set(BOOST_HASH 2575e74ffc3ef1cd0babac2c1ee8bdb5782a0ee672b1912da40e5b4b591ca01f)
+set(BOOST_HASH be0d91732d5b0cc6fbb275c7939974457e79b54d6f07ce2e3dfdd68bef883b0b)
 set(BOOST2_HASH 7bd7ddceec1a1dfdcbdb3e609b60d01739c38390a5f956385a12f3122049f0ca)
diff --git a/cmake/versions.cmake b/cmake/versions.cmake
index d9690af9..5d1493c5 100644
--- a/cmake/versions.cmake
+++ b/cmake/versions.cmake
@@ -44,7 +44,7 @@ set(LIBJPEG_TURBO_VERSION 3.0.3)
 set(VORBIS_VERSION 1.3.7)
 set(DTL_VERSION 2.01)
 set(EXPAT_VERSION 2.6.2)
-set(BOOST_MINOR_VERSION 86)
+set(BOOST_MINOR_VERSION 85)
 set(STDUUID_VERSION 1.2.3)
 set(BOOST2_MAJOR_VERSION 1)
 set(JSON_VERSION 3.11.3)
diff --git a/scripts/versions.sh b/scripts/versions.sh
index c7d16d94..e3290232 100755
--- a/scripts/versions.sh
+++ b/scripts/versions.sh
@@ -6,7 +6,7 @@ PROJECT_VERSIONS[BOOST2_MAJOR]="1"
 PROJECT_VERSIONS[BOOST2_MINOR]="76"
 PROJECT_VERSIONS[BOOST2_PATCH]="0"
 PROJECT_VERSIONS[BOOST_MAJOR]="1"
-PROJECT_VERSIONS[BOOST_MINOR]="86"
+PROJECT_VERSIONS[BOOST_MINOR]="85"
 PROJECT_VERSIONS[BOOST_PATCH]="0"
 PROJECT_VERSIONS[CLI11]="2.4.2"
 PROJECT_VERSIONS[CPP_HTTPLIB]="0.16.3"
diff --git a/support/3rd_party/boost_1_86_0.tar.gz b/support/3rd_party/boost_1_85_0.tar.gz
similarity index 87%
rename from support/3rd_party/boost_1_86_0.tar.gz
rename to support/3rd_party/boost_1_85_0.tar.gz
index b8844bef..d135b75d 100644
Binary files a/support/3rd_party/boost_1_86_0.tar.gz and b/support/3rd_party/boost_1_85_0.tar.gz differ
diff --git a/support/3rd_party/boost_1_85_0.tar.gz.sha256 b/support/3rd_party/boost_1_85_0.tar.gz.sha256
new file mode 100644
index 00000000..45585133
--- /dev/null
+++ b/support/3rd_party/boost_1_85_0.tar.gz.sha256
@@ -0,0 +1 @@
+be0d91732d5b0cc6fbb275c7939974457e79b54d6f07ce2e3dfdd68bef883b0b  boost_1_85_0.tar.gz
diff --git a/support/3rd_party/boost_1_86_0.tar.gz.sha256 b/support/3rd_party/boost_1_86_0.tar.gz.sha256
deleted file mode 100644
index b73a4f31..00000000
--- a/support/3rd_party/boost_1_86_0.tar.gz.sha256
+++ /dev/null
@@ -1 +0,0 @@
-2575e74ffc3ef1cd0babac2c1ee8bdb5782a0ee672b1912da40e5b4b591ca01f  boost_1_86_0.tar.gz