diff --git a/cmake/modules/FindOpenVDB.cmake b/cmake/modules/FindOpenVDB.cmake
index 4fde5fa4a7..5379a1a9e3 100644
--- a/cmake/modules/FindOpenVDB.cmake
+++ b/cmake/modules/FindOpenVDB.cmake
@@ -123,7 +123,7 @@ if (OPENVDB_FIND_MODULE_PATH)
 endif ()
 # ###########################################################################
 
-cmake_minimum_required(VERSION 3.3)
+cmake_minimum_required(VERSION 3.5)
 # Monitoring <PackageName>_ROOT variables
 if(POLICY CMP0074)
   cmake_policy(SET CMP0074 NEW)
diff --git a/sandboxes/opencsg/CMakeLists.txt b/sandboxes/opencsg/CMakeLists.txt
index ace8f4d539..fd1e5601e2 100644
--- a/sandboxes/opencsg/CMakeLists.txt
+++ b/sandboxes/opencsg/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.0)
+cmake_minimum_required(VERSION 3.5)
 
 project(OpenCSG-example)
 
diff --git a/src/admesh/CMakeLists.txt b/src/admesh/CMakeLists.txt
index 217976318a..645495d9bb 100644
--- a/src/admesh/CMakeLists.txt
+++ b/src/admesh/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.5)
 project(admesh)
 
 add_library(admesh STATIC
diff --git a/src/avrdude/CMakeLists.txt b/src/avrdude/CMakeLists.txt
index 091afc6f98..64ce87f56f 100644
--- a/src/avrdude/CMakeLists.txt
+++ b/src/avrdude/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.0)
+cmake_minimum_required(VERSION 3.5)
 
 add_definitions(-D_BSD_SOURCE -D_DEFAULT_SOURCE)   # To enable various useful macros and functions on Unices
 remove_definitions(-D_UNICODE -DUNICODE)
diff --git a/src/boost/CMakeLists.txt b/src/boost/CMakeLists.txt
index e8c9e11ce6..c8950e1501 100644
--- a/src/boost/CMakeLists.txt
+++ b/src/boost/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.5)
 project(nowide)
 
 add_library(nowide STATIC
diff --git a/src/clipper/CMakeLists.txt b/src/clipper/CMakeLists.txt
index 1c1cfd5a7c..e57218413a 100644
--- a/src/clipper/CMakeLists.txt
+++ b/src/clipper/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.5)
 project(clipper)
 
 add_library(clipper STATIC
diff --git a/src/exif/CMakeLists.txt b/src/exif/CMakeLists.txt
index bdab4df6c4..48a5ecf883 100644
--- a/src/exif/CMakeLists.txt
+++ b/src/exif/CMakeLists.txt
@@ -1,5 +1,4 @@
-
-cmake_minimum_required(VERSION 2.5)
+cmake_minimum_required(VERSION 3.5)
 
 include_directories(include)
 
diff --git a/src/glu-libtess/CMakeLists.txt b/src/glu-libtess/CMakeLists.txt
index 8fca992a3e..bfa43d3693 100644
--- a/src/glu-libtess/CMakeLists.txt
+++ b/src/glu-libtess/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.5)
 project(glu-libtess)
 
 add_library(glu-libtess STATIC 
diff --git a/src/imgui/CMakeLists.txt b/src/imgui/CMakeLists.txt
index 5239eb3d5c..d71bf3716e 100644
--- a/src/imgui/CMakeLists.txt
+++ b/src/imgui/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.5)
 project(imgui)
 
 add_library(imgui STATIC
diff --git a/src/jpeg-compressor/CMakeLists.txt b/src/jpeg-compressor/CMakeLists.txt
index 7d404dc995..9f717165f2 100644
--- a/src/jpeg-compressor/CMakeLists.txt
+++ b/src/jpeg-compressor/CMakeLists.txt
@@ -1,6 +1,6 @@
 # PrusaSlicer specific CMake
 
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.5)
 project(jpeg-compressor)
 
 add_library(jpeg-compressor STATIC
diff --git a/src/libigl/CMakeLists.txt b/src/libigl/CMakeLists.txt
index f023826a52..f180ea4168 100644
--- a/src/libigl/CMakeLists.txt
+++ b/src/libigl/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.0)
+cmake_minimum_required(VERSION 3.5)
 project(libigl)
 
 add_library(libigl INTERFACE)
diff --git a/src/miniz/CMakeLists.txt b/src/miniz/CMakeLists.txt
index 04d562b764..3beefa3921 100644
--- a/src/miniz/CMakeLists.txt
+++ b/src/miniz/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.5)
 project(miniz)
 
 add_library(miniz INTERFACE)
diff --git a/src/qoi/CMakeLists.txt b/src/qoi/CMakeLists.txt
index af8bf2e051..acd97ee230 100644
--- a/src/qoi/CMakeLists.txt
+++ b/src/qoi/CMakeLists.txt
@@ -1,6 +1,6 @@
 # PrusaSlicer specific CMake
 
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.5)
 project(qoi)
 
 add_library(qoi STATIC
diff --git a/src/semver/CMakeLists.txt b/src/semver/CMakeLists.txt
index 4b61a7456e..59f12a4ca5 100644
--- a/src/semver/CMakeLists.txt
+++ b/src/semver/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.5)
 project(semver)
 
 add_library(semver STATIC