diff --git a/meta-openembedded/meta-oe/recipes-devtools/guider/guider_3.9.7.bb b/meta-openembedded/meta-oe/recipes-devtools/guider/guider_3.9.7.bb
index 2b799fd..88fad93 100644
--- a/meta-openembedded/meta-oe/recipes-devtools/guider/guider_3.9.7.bb
+++ b/meta-openembedded/meta-oe/recipes-devtools/guider/guider_3.9.7.bb
@@ -9,7 +9,7 @@
 PV = "3.9.7+git${SRCPV}"
 
 SRC_URI = "git://github.com/iipeace/${BPN}"
-SRCREV = "c87269d6d4669d12c99a2a7b9b07c39a5dd24ac6"
+SRCREV = "459b5189a46023fc98e19888b196bdc2674022fd"
 
 S = "${WORKDIR}/git"
 
diff --git a/meta-openembedded/meta-oe/recipes-devtools/protobuf/protobuf-c_1.3.3.bb b/meta-openembedded/meta-oe/recipes-devtools/protobuf/protobuf-c_1.3.3.bb
index bb8aecd..6fef0be 100644
--- a/meta-openembedded/meta-oe/recipes-devtools/protobuf/protobuf-c_1.3.3.bb
+++ b/meta-openembedded/meta-oe/recipes-devtools/protobuf/protobuf-c_1.3.3.bb
@@ -22,6 +22,11 @@
 
 inherit autotools pkgconfig
 
+# After several fix attempts there is still a race between generating
+# t.test-full.pb.h and compiling cxx_generate_packed_data.c despite
+# BUILT_SOURCES and explicit dependencies.
+PARALLEL_MAKE = ""
+
 PACKAGE_BEFORE_PN = "${PN}-compiler"
 
 FILES_${PN}-compiler = "${bindir}"
diff --git a/meta-openembedded/meta-oe/recipes-devtools/protobuf/protobuf/0001-examples-Makefile-respect-CXX-LDFLAGS-variables-fix-.patch b/meta-openembedded/meta-oe/recipes-devtools/protobuf/protobuf/0001-examples-Makefile-respect-CXX-LDFLAGS-variables-fix-.patch
index 0a2e5e2..934c981 100644
--- a/meta-openembedded/meta-oe/recipes-devtools/protobuf/protobuf/0001-examples-Makefile-respect-CXX-LDFLAGS-variables-fix-.patch
+++ b/meta-openembedded/meta-oe/recipes-devtools/protobuf/protobuf/0001-examples-Makefile-respect-CXX-LDFLAGS-variables-fix-.patch
@@ -1,4 +1,4 @@
-From a28e15092a298e0c73c6fc1ded0913275cf27cb0 Mon Sep 17 00:00:00 2001
+From e5340f816aa273cfda36998466739ca0748caafb Mon Sep 17 00:00:00 2001
 From: Martin Jansa <Martin.Jansa@gmail.com>
 Date: Fri, 28 Jun 2019 13:50:52 +0000
 Subject: [PATCH] examples/Makefile: respect CXX,LDFLAGS variables, fix build
@@ -23,12 +23,13 @@
 
 Upstream-Status: Pending
 Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
+Signed-off-by: Leon Anavi <leon.anavi@konsulko.com>
 ---
  examples/Makefile | 6 ++++--
  1 file changed, 4 insertions(+), 2 deletions(-)
 
 diff --git a/examples/Makefile b/examples/Makefile
-index 4ad605641..31d887639 100644
+index e9f9635ae..b2fbe2de1 100644
 --- a/examples/Makefile
 +++ b/examples/Makefile
 @@ -2,6 +2,8 @@
@@ -44,13 +45,16 @@
  
  add_person_cpp: add_person.cc protoc_middleman
  	pkg-config --cflags protobuf  # fails if protobuf is not installed
--	c++ add_person.cc addressbook.pb.cc -o add_person_cpp `pkg-config --cflags --libs protobuf`
+-	c++ -std=c++11 add_person.cc addressbook.pb.cc -o add_person_cpp `pkg-config --cflags --libs protobuf`
 +	$(CXX) $(CXXFLAGS) $(LDFLAGS) ../src/google/protobuf/.libs/timestamp.pb.o $(PROTOBUF) add_person.cc addressbook.pb.cc -o add_person_cpp
  
  list_people_cpp: list_people.cc protoc_middleman
  	pkg-config --cflags protobuf  # fails if protobuf is not installed
--	c++ list_people.cc addressbook.pb.cc -o list_people_cpp `pkg-config --cflags --libs protobuf`
+-	c++ -std=c++11 list_people.cc addressbook.pb.cc -o list_people_cpp `pkg-config --cflags --libs protobuf`
 +	$(CXX) $(CXXFLAGS) $(LDFLAGS) ../src/google/protobuf/.libs/timestamp.pb.o $(PROTOBUF) list_people.cc addressbook.pb.cc -o list_people_cpp
  
  add_person_dart: add_person.dart protoc_middleman_dart
  
+-- 
+2.17.1
+
diff --git a/meta-openembedded/meta-oe/recipes-devtools/protobuf/protobuf_3.11.4.bb b/meta-openembedded/meta-oe/recipes-devtools/protobuf/protobuf_3.12.3.bb
similarity index 95%
rename from meta-openembedded/meta-oe/recipes-devtools/protobuf/protobuf_3.11.4.bb
rename to meta-openembedded/meta-oe/recipes-devtools/protobuf/protobuf_3.12.3.bb
index 4d6c5b2..21ad7a4 100644
--- a/meta-openembedded/meta-oe/recipes-devtools/protobuf/protobuf_3.11.4.bb
+++ b/meta-openembedded/meta-oe/recipes-devtools/protobuf/protobuf_3.12.3.bb
@@ -10,9 +10,9 @@
 DEPENDS = "zlib"
 DEPENDS_append_class-target = " protobuf-native"
 
-SRCREV = "d0bfd5221182da1a7cc280f3337b5e41a89539cf"
+SRCREV = "31ebe2ac71400344a5db91ffc13c4ddfb7589f92"
 
-SRC_URI = "git://github.com/google/protobuf.git;branch=3.11.x \
+SRC_URI = "git://github.com/protocolbuffers/protobuf.git \
            file://run-ptest \
            file://0001-protobuf-fix-configure-error.patch \
            file://0001-Makefile.am-include-descriptor.cc-when-building-libp.patch \
diff --git a/meta-openembedded/meta-oe/recipes-devtools/sip/sip3_4.19.19.bb b/meta-openembedded/meta-oe/recipes-devtools/sip/sip3_4.19.19.bb
deleted file mode 100644
index 010fa30..0000000
--- a/meta-openembedded/meta-oe/recipes-devtools/sip/sip3_4.19.19.bb
+++ /dev/null
@@ -1,11 +0,0 @@
-require sip.inc
-
-DEPENDS = "python3"
-
-inherit python3-dir python3native
-
-PACKAGES += "python3-sip3"
-
-FILES_python3-sip3 = "${libdir}/${PYTHON_DIR}/site-packages/"
-FILES_${PN}-dbg += "${libdir}/${PYTHON_DIR}/site-packages/.debug"
-
diff --git a/meta-openembedded/meta-oe/recipes-devtools/sip/sip.inc b/meta-openembedded/meta-oe/recipes-devtools/sip/sip3_4.19.23.bb
similarity index 78%
rename from meta-openembedded/meta-oe/recipes-devtools/sip/sip.inc
rename to meta-openembedded/meta-oe/recipes-devtools/sip/sip3_4.19.23.bb
index d8e32a7..320755b 100644
--- a/meta-openembedded/meta-oe/recipes-devtools/sip/sip.inc
+++ b/meta-openembedded/meta-oe/recipes-devtools/sip/sip3_4.19.23.bb
@@ -1,16 +1,22 @@
 SUMMARY = "SIP is a C++/Python Wrapper Generator"
-HOMEPAGE = "http://www.riverbankcomputing.co.uk/sip"
+HOMEPAGE = "https://riverbankcomputing.com/software/sip/"
 SECTION = "devel"
 LICENSE = "GPLv2+"
 LIC_FILES_CHKSUM = "file://LICENSE-GPL2;md5=e91355d8a6f8bd8f7c699d62863c7303"
 
 SRC_URI = "https://www.riverbankcomputing.com/static/Downloads/sip/${PV}/sip-${PV}.tar.gz \
 "
-SRC_URI[md5sum] = "98111479309dc472410f26080d6d4a88"
-SRC_URI[sha256sum] = "5436b61a78f48c7e8078e93a6b59453ad33780f80c644e5f3af39f94be1ede44"
+SRC_URI[md5sum] = "70adc0c9734e2d9dcd241d3f931dfc74"
+SRC_URI[sha256sum] = "22ca9bcec5388114e40d4aafd7ccd0c4fe072297b628d0c5cdfa2f010c0bc7e7"
+
+inherit python3-dir python3native
 
 S = "${WORKDIR}/sip-${PV}"
 
+DEPENDS = "python3"
+
+PACKAGES += "python3-sip3"
+
 BBCLASSEXTEND = "native"
 
 do_configure_prepend_class-target() {
@@ -22,6 +28,7 @@
     echo "sip_sip_dir = ${D}/${datadir}/sip" >> sip.cfg
     ${PYTHON} configure.py --configuration sip.cfg --sip-module PyQt5.sip --sysroot ${STAGING_DIR_HOST} CC="${CC}" CXX="${CXX}" LINK="${CXX}" STRIP="" LINK_SHLIB="${CXX}" CFLAGS="${CFLAGS}" CXXFLAGS="${CXXFLAGS}" LFLAGS="${LDFLAGS}"
 }
+
 do_configure_prepend_class-native() {
     echo "py_platform = linux" > sip.cfg
     echo "py_inc_dir = ${includedir}/python%(py_major).%(py_minor)${PYTHON_ABI}" >> sip.cfg
@@ -31,6 +38,10 @@
     echo "sip_sip_dir = ${D}/${datadir}/sip" >> sip.cfg
     ${PYTHON} configure.py --configuration sip.cfg --sip-module PyQt5.sip --sysroot=${STAGING_DIR_NATIVE}
 }
+
 do_install() {
     oe_runmake install
 }
+
+FILES_python3-sip3 = "${libdir}/${PYTHON_DIR}/site-packages/"
+FILES_${PN}-dbg += "${libdir}/${PYTHON_DIR}/site-packages/.debug"