diff --git a/src/libs/qtcreatorcdbext/CMakeLists.txt b/src/libs/qtcreatorcdbext/CMakeLists.txt
index b6171d183dd..45d55474aad 100644
--- a/src/libs/qtcreatorcdbext/CMakeLists.txt
+++ b/src/libs/qtcreatorcdbext/CMakeLists.txt
@@ -45,9 +45,9 @@ add_qtc_library(qtcreatorcdbext
 
 qtc_library_enabled(_library_enabled qtcreatorcdbext)
 if (_library_enabled)
-  find_package(PythonLibs 3.5)
+  find_package(PythonLibs 3.8)
   if (NOT ${PYTHONLIBS_FOUND})
-    message(WARNING "PythonLibs (at least version 3.5) not found. qtcreatorcdbext will be built without Python support.")
+    message(WARNING "PythonLibs (at least version 3.8) not found. qtcreatorcdbext will be built without Python support.")
     return()
   endif()
 
diff --git a/src/libs/qtcreatorcdbext/extensioncontext.cpp b/src/libs/qtcreatorcdbext/extensioncontext.cpp
index c6ae69fac7e..4842289c670 100644
--- a/src/libs/qtcreatorcdbext/extensioncontext.cpp
+++ b/src/libs/qtcreatorcdbext/extensioncontext.cpp
@@ -162,7 +162,14 @@ HRESULT ExtensionContext::initialize(PULONG Version, PULONG Flags)
 
 #ifdef WITH_PYTHON
     initCdbextPythonModule();
-    Py_Initialize();
+    PyStatus status;
+    PyConfig config;
+    PyConfig_InitIsolatedConfig(&config);
+    status = Py_InitializeFromConfig(&config);
+    PyConfig_Clear(&config);
+    if (PyStatus_Exception(status)) {
+        Py_ExitStatusException(status);
+    }
     PyRun_SimpleString("import cdbext");
     PyRun_SimpleString("import sys");
 #endif
diff --git a/src/libs/qtcreatorcdbext/qtcreatorcdbext.pro b/src/libs/qtcreatorcdbext/qtcreatorcdbext.pro
index 98961887b94..f9f30f925f9 100644
--- a/src/libs/qtcreatorcdbext/qtcreatorcdbext.pro
+++ b/src/libs/qtcreatorcdbext/qtcreatorcdbext.pro
@@ -114,7 +114,7 @@ isEmpty(PYTHON_INSTALL_DIR):PYTHON_INSTALL_DIR=$$(PYTHON_INSTALL_DIR)
     CONFIG(debug, debug|release): deploy_python.recurse = Debug
     QMAKE_EXTRA_TARGETS += deploy_python
 } else {
-    message("Set PYTHON_INSTALL_DIR pointing to Python 3.5 or greater to enable the python dumpers for cdb.")
+    message("Set PYTHON_INSTALL_DIR pointing to Python 3.8 or greater to enable the python dumpers for cdb.")
 }
 
 target.path = $$QTC_PREFIX/lib/$${DIRNAME} # TODO this should go to INSTALL_LIBRARY_PATH/$${DIRNAME}
diff --git a/src/libs/qtcreatorcdbext/qtcreatorcdbext.qbs b/src/libs/qtcreatorcdbext/qtcreatorcdbext.qbs
index 3f446e2916f..fac2f7a25b7 100644
--- a/src/libs/qtcreatorcdbext/qtcreatorcdbext.qbs
+++ b/src/libs/qtcreatorcdbext/qtcreatorcdbext.qbs
@@ -50,10 +50,11 @@ QtcLibrary {
                             + output + "'");
                     return;
                 }
-                if (Utilities.versionCompare(versionNumberString, "3.5") < 0) {
+                var pythonMinVersion = "3.8";
+                if (Utilities.versionCompare(versionNumberString, pythonMinVersion) < 0) {
                     printWarning("The python installation at '" + pythonDir
-                                 + "' has version " + versionNumberString + ", but 3.5 or higher "
-                                 + "is required.");
+                                 + "' has version " + versionNumberString + ", but "
+                                 + pythonMinVersion + " or higher is required.");
                     return;
                 }
                 found = true;
diff --git a/src/libs/qtcreatorcdbext/qtcreatorcdbextension.cpp b/src/libs/qtcreatorcdbext/qtcreatorcdbextension.cpp
index f4dcde9736c..4895fb6c2e5 100644
--- a/src/libs/qtcreatorcdbext/qtcreatorcdbextension.cpp
+++ b/src/libs/qtcreatorcdbext/qtcreatorcdbextension.cpp
@@ -654,7 +654,7 @@ extern "C" HRESULT CALLBACK script(CIDebugClient *client, PCSTR argsIn)
     ExtensionContext::instance().report('N', token, 0, "script",
             "Python is not supported in this CDB extension.\n"
             "You need to define PYTHON_INSTALL_DIR in your creator build environment "
-            "pointing to a Python 3.5 installation.");
+            "pointing to a Python 3.8 installation.");
 #endif
     return S_OK;
 }