diff --git a/etc/config/c++.amazon.properties b/etc/config/c++.amazon.properties
index 3d4ad55f5e0..a2f07622dd8 100644
--- a/etc/config/c++.amazon.properties
+++ b/etc/config/c++.amazon.properties
@@ -2006,7 +2006,7 @@ libs.blaze.versions.38.version=3.8
 libs.blaze.versions.38.path=/opt/compiler-explorer/libs/blaze/v3.8
 
 libs.boost.name=Boost
-libs.boost.versions=164:165:166:167:168:169:170:171:172:173:174:175:176:177:178:179:180
+libs.boost.versions=164:165:166:167:168:169:170:171:172:173:174:175:176:177:178:179:180:181
 libs.boost.url=https://www.boost.org
 libs.boost.versions.164.version=1.64.0
 libs.boost.versions.164.path=/opt/compiler-explorer/libs/boost_1_64_0
@@ -2042,6 +2042,8 @@ libs.boost.versions.179.version=1.79.0
 libs.boost.versions.179.path=/opt/compiler-explorer/libs/boost_1_79_0
 libs.boost.versions.180.version=1.80.0
 libs.boost.versions.180.path=/opt/compiler-explorer/libs/boost_1_80_0
+libs.boost.versions.181.version=1.81.0
+libs.boost.versions.181.path=/opt/compiler-explorer/libs/boost_1_81_0
 
 libs.bmulti.name=B-Multi
 libs.bmulti.url=https://gitlab.com/correaa/boost-multi