diff --git a/Modules/FindPython/Support.cmake b/Modules/FindPython/Support.cmake
index 50c8452dc5..24a3970577 100644
--- a/Modules/FindPython/Support.cmake
+++ b/Modules/FindPython/Support.cmake
@@ -24,7 +24,7 @@ if (NOT DEFINED _${_PYTHON_PREFIX}_REQUIRED_VERSION_MAJOR)
   message (FATAL_ERROR "FindPython: INTERNAL ERROR")
 endif()
 if (_${_PYTHON_PREFIX}_REQUIRED_VERSION_MAJOR EQUAL "3")
-  set(_${_PYTHON_PREFIX}_VERSIONS 3.14 3.13 3.12 3.11 3.10 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0)
+  set(_${_PYTHON_PREFIX}_VERSIONS 3.15 3.14 3.13 3.12 3.11 3.10 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0)
 elseif (_${_PYTHON_PREFIX}_REQUIRED_VERSION_MAJOR EQUAL "2")
   set(_${_PYTHON_PREFIX}_VERSIONS 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0)
 else()
diff --git a/Modules/FindPythonInterp.cmake b/Modules/FindPythonInterp.cmake
index 490d79f2cd..4f4b85fae9 100644
--- a/Modules/FindPythonInterp.cmake
+++ b/Modules/FindPythonInterp.cmake
@@ -100,7 +100,7 @@ unset(_Python_NAMES)
 
 set(_PYTHON1_VERSIONS 1.6 1.5)
 set(_PYTHON2_VERSIONS 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0)
-set(_PYTHON3_VERSIONS 3.14 3.13 3.12 3.11 3.10 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0)
+set(_PYTHON3_VERSIONS 3.15 3.14 3.13 3.12 3.11 3.10 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0)
 
 if(PythonInterp_FIND_VERSION)
     if(PythonInterp_FIND_VERSION_COUNT GREATER 1)
diff --git a/Modules/FindPythonLibs.cmake b/Modules/FindPythonLibs.cmake
index 4a0c1db6cc..bf2b2dcd31 100644
--- a/Modules/FindPythonLibs.cmake
+++ b/Modules/FindPythonLibs.cmake
@@ -156,7 +156,7 @@ set(CMAKE_FIND_FRAMEWORK LAST)
 
 set(_PYTHON1_VERSIONS 1.6 1.5)
 set(_PYTHON2_VERSIONS 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0)
-set(_PYTHON3_VERSIONS 3.14 3.13 3.12 3.11 3.10 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0)
+set(_PYTHON3_VERSIONS 3.15 3.14 3.13 3.12 3.11 3.10 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0)
 
 if(PythonLibs_FIND_VERSION)
     if(PythonLibs_FIND_VERSION_COUNT GREATER 1)
diff --git a/Tests/FindBoost/TestPython/CMakeLists.txt b/Tests/FindBoost/TestPython/CMakeLists.txt
index 166a411b0b..64cd85342b 100644
--- a/Tests/FindBoost/TestPython/CMakeLists.txt
+++ b/Tests/FindBoost/TestPython/CMakeLists.txt
@@ -2,10 +2,24 @@ cmake_minimum_required(VERSION 3.14)
 project(TestFindBoostPython CXX)
 include(CTest)
 
-find_package(Boost OPTIONAL_COMPONENTS python27 python34 python35 python36 python37 python38 python39 python310 python311 python312 python313 python314)
+find_package(Boost OPTIONAL_COMPONENTS
+  python27
+  python34
+  python35
+  python36
+  python37
+  python38
+  python39
+  python310
+  python311
+  python312
+  python313
+  python314
+  python315
+)
 
 set(FAILTEST TRUE)
-foreach (v IN ITEMS 27 34 35 36 37 38 39 310 311 312 313 314)
+foreach (v IN ITEMS 27 34 35 36 37 38 39 310 311 312 313 314 315)
   if (Boost_PYTHON${v}_FOUND)
     set(FAILTEST FALSE)
     break()