diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3d0f17eb9..e27ef4793 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 ## -*- mode: CMake -*-
 ##
-## Copyright (c) 2017 The University of Utah
+## Copyright (c) 2017, 2019 The University of Utah
 ## All rights reserved.
 ##
 ## This file is part of `csmith', a random generator of C programs.
@@ -29,7 +29,7 @@
 
 ###############################################################################
 
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.1)
 
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake")
 
diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index 36e65f46a..f21485425 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -1,6 +1,6 @@
 ## -*- mode: CMake -*-
 ##
-## Copyright (c) 2017 The University of Utah
+## Copyright (c) 2017, 2019 The University of Utah
 ## All rights reserved.
 ##
 ## This file is part of `csmith', a random generator of C programs.
@@ -29,7 +29,7 @@
 
 ###############################################################################
 
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.1)
 project(csmith_doc)
 
 set(DOC_DIR "${CMAKE_INSTALL_PREFIX}/share/doc/csmith")
diff --git a/runtime/CMakeLists.txt b/runtime/CMakeLists.txt
index 8e050b0f8..74afe7e7c 100644
--- a/runtime/CMakeLists.txt
+++ b/runtime/CMakeLists.txt
@@ -1,6 +1,6 @@
 ## -*- mode: CMake -*-
 ##
-## Copyright (c) 2017 The University of Utah
+## Copyright (c) 2017, 2019 The University of Utah
 ## All rights reserved.
 ##
 ## This file is part of `csmith', a random generator of C programs.
@@ -29,7 +29,7 @@
 
 ###############################################################################
 
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.1)
 project(csmith_runtime)
 
 # CMP0042 was introduced in CMake 3.0.  Don't error in older CMakes.
diff --git a/scripts/CMakeLists.txt b/scripts/CMakeLists.txt
index 6a40a0a4b..a5007f2eb 100644
--- a/scripts/CMakeLists.txt
+++ b/scripts/CMakeLists.txt
@@ -1,6 +1,6 @@
 ## -*- mode: CMake -*-
 ##
-## Copyright (c) 2017 The University of Utah
+## Copyright (c) 2017, 2019 The University of Utah
 ## All rights reserved.
 ##
 ## This file is part of `csmith', a random generator of C programs.
@@ -29,7 +29,7 @@
 
 ###############################################################################
 
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.1)
 project(csmith_scripts)
 
 set(BIN_DIR "${CMAKE_INSTALL_PREFIX}/bin")
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 01745380a..a35d3a399 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -29,7 +29,7 @@
 
 ###############################################################################
 
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.1)
 project(csmith_src)
 
 set(BIN_DIR "${CMAKE_INSTALL_PREFIX}/bin")