diff --git a/3rdparty/ext_pyqt/CMakeLists.txt b/3rdparty/ext_pyqt/CMakeLists.txt
index ed65304773..2ef225701c 100644
--- a/3rdparty/ext_pyqt/CMakeLists.txt
+++ b/3rdparty/ext_pyqt/CMakeLists.txt
@@ -1,54 +1,54 @@
 SET(PREFIX_ext_pyqt "${EXTPREFIX}" )
 if (UNIX)
     SET(PYTHON_EXECUTABLE_PATH ${PREFIX_ext_pyqt}/bin/python3)
     if(NOT EXISTS ${PYTHON_EXECUTABLE_PATH})
       message("WARNING: using system python3!")
       SET(PYTHON_EXECUTABLE_PATH python3)
     endif()
     ExternalProject_Add( ext_pyqt
         DOWNLOAD_DIR ${EXTERNALS_DOWNLOAD_DIR}
-        URL https://www.riverbankcomputing.com/static/Downloads/PyQt5/PyQt5_gpl-5.12.zip
-        URL_MD5 102062aff7435c03114e02c456dfd01f
+        URL https://www.riverbankcomputing.com/static/Downloads/PyQt5/PyQt5_gpl-5.12.1.zip
+        URL_MD5 0b2912828a4d59e13d86decdce1687e6
         
         CONFIGURE_COMMAND ${PYTHON_EXECUTABLE_PATH} <SOURCE_DIR>/configure.py --confirm-license --qmake ${PREFIX_ext_pyqt}/bin/qmake --sip ${PREFIX_ext_pyqt}/bin/sip --sip-incdir ${PREFIX_ext_pyqt}/include --sipdir ${PREFIX_ext_pyqt}/share/sip
         BUILD_COMMAND make
         INSTALL_COMMAND make install
         
         BUILD_IN_SOURCE 1
 
         UPDATE_COMMAND ""
     )
 elseif(MINGW)
 
     list(APPEND _PYQT_conf
         --confirm-license
         --target-py-version 3.6
         --bindir ${PREFIX_ext_pyqt}/bin
         --qt ${PREFIX_ext_pyqt}
         --sip ${PREFIX_ext_pyqt}/bin/sip.exe
         --sip-incdir ${PREFIX_ext_pyqt}/include
         --spec win32-g++
         --verbose
         --sipdir ${PREFIX_ext_pyqt}/share/sip
         --destdir ${PREFIX_ext_pyqt}/lib/krita-python-libs
         --stubsdir ${PREFIX_ext_pyqt}/lib/krita-python-libs/PyQt5
         --no-qml-plugin --no-python-dbus --no-qsci-api --no-tools
         --disable QtSql --disable QtTest --disable QtWinExtras --disable QtHelp
     )
     ExternalProject_Add( ext_pyqt
         DOWNLOAD_DIR ${EXTERNALS_DOWNLOAD_DIR}
-        URL https://www.riverbankcomputing.com/static/Downloads/PyQt5/PyQt5_gpl-5.12.tar.gz
-        URL_MD5 757161fc19a2da788962fbc5d18480c0
+        URL https://www.riverbankcomputing.com/static/Downloads/PyQt5/PyQt5_gpl-5.12.1.tar.gz
+        URL_MD5 67508b652098d2e05c4c2b5baeb170cc
         PATCH_COMMAND  ${PATCH_COMMAND} -p1 -i ${CMAKE_CURRENT_SOURCE_DIR}/pyqt-configure-fix.patch
 
         CONFIGURE_COMMAND ${PYTHON_EXECUTABLE} <SOURCE_DIR>/configure.py ${_PYQT_conf}
         BUILD_COMMAND mingw32-make -j${SUBMAKE_JOBS} CXXFLAGS=-D_hypot=hypot LDFLAGS=${SECURITY_SHARED_LINKER_FLAGS}
         INSTALL_COMMAND mingw32-make install
         
         BUILD_IN_SOURCE 1
 
         UPDATE_COMMAND ""
     )
 
 endif()
 
diff --git a/3rdparty/ext_sip/CMakeLists.txt b/3rdparty/ext_sip/CMakeLists.txt
index bd57c2d659..4a57c053ad 100644
--- a/3rdparty/ext_sip/CMakeLists.txt
+++ b/3rdparty/ext_sip/CMakeLists.txt
@@ -1,45 +1,45 @@
 SET(PREFIX_ext_sip "${EXTPREFIX}" )
 if (UNIX)
   SET(PYTHON_EXECUTABLE_PATH ${PREFIX_ext_sip}/bin/python3)
   if(NOT EXISTS ${PYTHON_EXECUTABLE_PATH})
     message("WARNING: using system python3!")
     SET(PYTHON_EXECUTABLE_PATH python3)
   endif()
 
   ExternalProject_Add( ext_sip
         DOWNLOAD_DIR ${EXTERNALS_DOWNLOAD_DIR}
-        URL https://www.riverbankcomputing.com/static/Downloads/sip/sip-4.19.14.tar.gz
-        URL_MD5 bba62b2ea7e16193c7dfcfadb8dd0d05
+        URL https://www.riverbankcomputing.com/static/Downloads/sip/sip-4.19.15.zip
+        URL_MD5 4a1a4760cfabef15d68f45a6920974c2
 
         CONFIGURE_COMMAND ${PYTHON_EXECUTABLE_PATH} <SOURCE_DIR>/configure.py -b ${PREFIX_ext_sip}/bin -d ${PREFIX_ext_sip}/sip -e ${PREFIX_ext_sip}/include  --sipdir ${PREFIX_ext_sip}/sip --target-py-version 3.5
         BUILD_COMMAND make
         INSTALL_COMMAND make install
 
         BUILD_IN_SOURCE 1
 
         UPDATE_COMMAND ""
     )
 elseif (MINGW)
     list(APPEND _SIP_conf
         --platform win32-g++
         -b ${PREFIX_ext_sip}/bin
         -d ${PREFIX_ext_sip}/lib/krita-python-libs
         -e ${PREFIX_ext_sip}/include
         --sipdir ${PREFIX_ext_sip}/share/sip
         --target-py-version 3.6
     )
     ExternalProject_Add( ext_sip
         DOWNLOAD_DIR ${EXTERNALS_DOWNLOAD_DIR}
-        URL https://www.riverbankcomputing.com/static/Downloads/sip/sip-4.19.14.tar.gz
-        URL_MD5 bba62b2ea7e16193c7dfcfadb8dd0d05
+        URL https://www.riverbankcomputing.com/static/Downloads/sip/sip-4.19.15.tar.gz
+        URL_MD5 236578d2199da630ae1251671b9a7bfe
 
         CONFIGURE_COMMAND ${PYTHON_EXECUTABLE} <SOURCE_DIR>/configure.py ${_SIP_conf}
         BUILD_COMMAND mingw32-make -j${SUBMAKE_JOBS} LDFLAGS=${SECURITY_SHARED_LINKER_FLAGS}
         INSTALL_COMMAND mingw32-make -j${SUBMAKE_JOBS} install
         
         BUILD_IN_SOURCE 1
 
         UPDATE_COMMAND ""
     )
 endif()