diff --git a/CMakeLists.txt b/CMakeLists.txt
index dc689954d..bf4c54e81 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -924,7 +924,7 @@ if(STATIC)
 endif()
 
 # Find Boost headers
-set(BOOST_MIN_VER 1.62)
+set(BOOST_MIN_VER 1.69)
 find_package(Boost ${BOOST_MIN_VER} QUIET REQUIRED CONFIG)
 
 if(NOT Boost_FOUND)
@@ -937,11 +937,6 @@ elseif(Boost_FOUND)
     list(APPEND BOOST_COMPONENTS locale)
   endif()
 
-  # Boost System is header-only since 1.69
-  if (Boost_VERSION_STRING VERSION_LESS 1.69.0)
-    list(APPEND BOOST_COMPONENTS system)
-  endif()
-
   # Boost Regex is header-only since 1.77
   if (Boost_VERSION_STRING VERSION_LESS 1.77.0)
     list(APPEND BOOST_COMPONENTS regex)
diff --git a/README.md b/README.md
index 7fb730203..48286eb85 100644
--- a/README.md
+++ b/README.md
@@ -143,7 +143,7 @@ The following table summarizes the tools and libraries required to build. A few
 | GCC          | 7             | NO       | `build-essential`    | `base-devel` | `base-devel`       | `gcc`               | NO       |                 |
 | CMake        | 3.10          | NO       | `cmake`              | `cmake`      | `cmake`            | `cmake`             | NO       |                 |
 | pkg-config   | any           | NO       | `pkg-config`         | `base-devel` | `base-devel`       | `pkgconf`           | NO       |                 |
-| Boost        | 1.66          | NO       | `libboost-all-dev`   | `boost`      | `boost-devel`      | `boost-devel`       | NO       | C++ libraries   |
+| Boost        | 1.69          | NO       | `libboost-all-dev`   | `boost`      | `boost-devel`      | `boost-devel`       | NO       | C++ libraries   |
 | OpenSSL      | 1.1.1         | NO       | `libssl-dev`         | `openssl`    | `openssl-devel`    | `openssl-devel`     | NO       | cryptography    |
 | libzmq       | 4.2.0         | NO       | `libzmq3-dev`        | `zeromq`     | `zeromq-devel`     | `zeromq-devel`      | NO       | ZeroMQ library  |
 | libunbound   | 1.4.16        | NO       | `libunbound-dev`     | `unbound`    | `unbound-devel`    | `unbound-devel`     | NO       | DNS resolver    |