diff --git a/third_party/DElight/CMakeLists.txt b/third_party/DElight/CMakeLists.txt
index 97eb3b95959..0ff4b238745 100644
--- a/third_party/DElight/CMakeLists.txt
+++ b/third_party/DElight/CMakeLists.txt
@@ -1,4 +1,4 @@
-CMAKE_MINIMUM_REQUIRED( VERSION 2.8.12 )
+CMAKE_MINIMUM_REQUIRED( VERSION 2.8.12...3.5 )  # bumped max support to 3.5 to hush a cmake deprecation warning
 
 PROJECT(DElight)
 
diff --git a/third_party/Windows-CalcEngine/CMakeLists.txt b/third_party/Windows-CalcEngine/CMakeLists.txt
index 1e600c72a3a..401d5e1cc2a 100644
--- a/third_party/Windows-CalcEngine/CMakeLists.txt
+++ b/third_party/Windows-CalcEngine/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required( VERSION 2.8.12 )
+cmake_minimum_required( VERSION 2.8.12...3.5)  # bumped max support to 3.5 to hush a cmake deprecation warning
 
 set( target_name Windows-CalcEngine )
 
diff --git a/third_party/gtest/CMakeLists.txt b/third_party/gtest/CMakeLists.txt
index ea81ab1292d..2aed8ea188b 100644
--- a/third_party/gtest/CMakeLists.txt
+++ b/third_party/gtest/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Note: CMake support is community-based. The maintainers do not use CMake
 # internally.
 
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 2.8.12...3.5)  # bumped max support to 3.5 to hush a cmake deprecation warning
 
 if (POLICY CMP0048)
   cmake_policy(SET CMP0048 NEW)
diff --git a/third_party/gtest/googlemock/CMakeLists.txt b/third_party/gtest/googlemock/CMakeLists.txt
index e7df8ec53d0..c577b3d78fe 100644
--- a/third_party/gtest/googlemock/CMakeLists.txt
+++ b/third_party/gtest/googlemock/CMakeLists.txt
@@ -42,7 +42,7 @@ else()
   cmake_policy(SET CMP0048 NEW)
   project(gmock VERSION ${GOOGLETEST_VERSION} LANGUAGES CXX C)
 endif()
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 2.8.12...3.5)  # bumped max support to 3.5 to hush a cmake deprecation warning
 
 if (COMMAND set_up_hermetic_build)
   set_up_hermetic_build()
diff --git a/third_party/gtest/googletest/CMakeLists.txt b/third_party/gtest/googletest/CMakeLists.txt
index abdd98b79a4..6d64d8b6c87 100644
--- a/third_party/gtest/googletest/CMakeLists.txt
+++ b/third_party/gtest/googletest/CMakeLists.txt
@@ -53,7 +53,7 @@ else()
   cmake_policy(SET CMP0048 NEW)
   project(gtest VERSION ${GOOGLETEST_VERSION} LANGUAGES CXX C)
 endif()
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 2.8.12...3.5)  # bumped max support to 3.5 to hush a cmake deprecation warning
 
 if (POLICY CMP0063) # Visibility
   cmake_policy(SET CMP0063 NEW)