diff --git a/meta-arm-bsp/recipes-bsp/boot-firmware/boot-firmware_git.bb b/meta-arm-bsp/recipes-bsp/boot-firmware/boot-firmware_git.bb
index cfcb98de..0a8e2df6 100644
--- a/meta-arm-bsp/recipes-bsp/boot-firmware/boot-firmware_git.bb
+++ b/meta-arm-bsp/recipes-bsp/boot-firmware/boot-firmware_git.bb
@@ -5,7 +5,7 @@ LICENSE = "BSD-3-Clause & Apache-2.0"
 LIC_FILES_CHKSUM = "file://license.md;md5=e44b2531cd6ffe9dece394dbe988d9a0 \
                     file://cmsis/LICENSE.txt;md5=e3fc50a88d0a364313df4b21ef20c29e"
 
-SRC_URI = "gitsm://git.linaro.org/landing-teams/working/arm/boot-firmware.git;protocol=https \
+SRC_URI = "gitsm://git.linaro.org/landing-teams/working/arm/boot-firmware.git;protocol=https;branch=master \
            file://gen-module-race.patch"
 SRCREV = "af7eeb1bb8c5a85a5e5a76d48acc6fe864d715a9"
 PV = "2020.02.10+git${SRCPV}"
diff --git a/meta-arm-bsp/recipes-bsp/trusted-firmware-a/trusted-firmware-a-corstone1000.inc b/meta-arm-bsp/recipes-bsp/trusted-firmware-a/trusted-firmware-a-corstone1000.inc
index 833396e8..32546bb3 100644
--- a/meta-arm-bsp/recipes-bsp/trusted-firmware-a/trusted-firmware-a-corstone1000.inc
+++ b/meta-arm-bsp/recipes-bsp/trusted-firmware-a/trusted-firmware-a-corstone1000.inc
@@ -2,7 +2,7 @@
 
 COMPATIBLE_MACHINE = "(corstone1000)"
 
-SRC_URI = "git://git.trustedfirmware.org/TF-A/trusted-firmware-a.git;protocol=https;name=tfa"
+SRC_URI = "git://git.trustedfirmware.org/TF-A/trusted-firmware-a.git;protocol=https;name=tfa;branch=master"
 
 # TF-A master branch with all Corstone1000 patches merged
 SRCREV_tfa = "459b24451a0829460783ce8dfa15561e36d901d8"
diff --git a/meta-arm-bsp/recipes-bsp/u-boot/u-boot_2020.04.bb b/meta-arm-bsp/recipes-bsp/u-boot/u-boot_2020.04.bb
index e54e34a1..1cd54be4 100644
--- a/meta-arm-bsp/recipes-bsp/u-boot/u-boot_2020.04.bb
+++ b/meta-arm-bsp/recipes-bsp/u-boot/u-boot_2020.04.bb
@@ -16,7 +16,7 @@ PE = "1"
 # repo during parse
 SRCREV = "36fec02b1f90b92cf51ec531564f9284eae27ab4"
 
-SRC_URI = "git://git.denx.de/u-boot.git \
+SRC_URI = "git://git.denx.de/u-boot.git;branch=master \
           "
 
 S = "${WORKDIR}/git"
diff --git a/meta-arm-bsp/recipes-bsp/u-boot/u-boot_2020.07.bb b/meta-arm-bsp/recipes-bsp/u-boot/u-boot_2020.07.bb
index fa99a3a8..4dc4a2f7 100644
--- a/meta-arm-bsp/recipes-bsp/u-boot/u-boot_2020.07.bb
+++ b/meta-arm-bsp/recipes-bsp/u-boot/u-boot_2020.07.bb
@@ -14,7 +14,7 @@ PE = "1"
 # repo during parse
 SRCREV = "2f5fbb5b39f7b67044dda5c35e4a4b31685a3109"
 
-SRC_URI = "git://git.denx.de/u-boot.git \
+SRC_URI = "git://git.denx.de/u-boot.git;branch=master \
           "
 
 S = "${WORKDIR}/git"
diff --git a/meta-arm-bsp/recipes-bsp/u-boot/u-boot_2020.10.bb b/meta-arm-bsp/recipes-bsp/u-boot/u-boot_2020.10.bb
index 6fffdbd2..0c4926bc 100644
--- a/meta-arm-bsp/recipes-bsp/u-boot/u-boot_2020.10.bb
+++ b/meta-arm-bsp/recipes-bsp/u-boot/u-boot_2020.10.bb
@@ -14,7 +14,7 @@ PE = "1"
 # repo during parse
 SRCREV = "050acee119b3757fee3bd128f55d720fdd9bb890"
 
-SRC_URI = "git://git.denx.de/u-boot.git \
+SRC_URI = "git://git.denx.de/u-boot.git;branch=master \
           "
 
 S = "${WORKDIR}/git"
diff --git a/meta-arm-bsp/recipes-test/corstone700-test-app/corstone700-test-app_1.0.bb b/meta-arm-bsp/recipes-test/corstone700-test-app/corstone700-test-app_1.0.bb
index d2bfb19f..8bd71ac4 100644
--- a/meta-arm-bsp/recipes-test/corstone700-test-app/corstone700-test-app_1.0.bb
+++ b/meta-arm-bsp/recipes-test/corstone700-test-app/corstone700-test-app_1.0.bb
@@ -4,7 +4,7 @@ HOMEPAGE = "https://git.linaro.org/landing-teams/working/arm/test-apps.git"
 LICENSE = "BSD-3-Clause"
 LIC_FILES_CHKSUM = "file://license.md;md5=e44b2531cd6ffe9dece394dbe988d9a0"
 
-SRC_URI = "git://git.linaro.org/landing-teams/working/arm/test-apps.git;protocol=https"
+SRC_URI = "git://git.linaro.org/landing-teams/working/arm/test-apps.git;protocol=https;branch=master"
 SRCREV = "ecd93a275d11cf08f670a97783110bd698250963"
 PV .= "~git${SRCPV}"
 
diff --git a/meta-arm/recipes-bsp/boot-wrapper-aarch64/boot-wrapper-aarch64_git.bb b/meta-arm/recipes-bsp/boot-wrapper-aarch64/boot-wrapper-aarch64_git.bb
index c7235173..8f4b9653 100644
--- a/meta-arm/recipes-bsp/boot-wrapper-aarch64/boot-wrapper-aarch64_git.bb
+++ b/meta-arm/recipes-bsp/boot-wrapper-aarch64/boot-wrapper-aarch64_git.bb
@@ -3,7 +3,7 @@ LICENSE = "BSD"
 
 LIC_FILES_CHKSUM = "file://LICENSE.txt;md5=bb63326febfb5fb909226c8e7ebcef5c"
 
-SRC_URI = "git://git.kernel.org/pub/scm/linux/kernel/git/mark/boot-wrapper-aarch64.git"
+SRC_URI = "git://git.kernel.org/pub/scm/linux/kernel/git/mark/boot-wrapper-aarch64.git;branch=master"
 SRCREV = "8d5a765251d9113c3c0f9fa14de42a9e7486fe8a"
 
 PV = "git${SRCPV}"
diff --git a/meta-arm/recipes-bsp/hafnium/hafnium_2.5.bb b/meta-arm/recipes-bsp/hafnium/hafnium_2.5.bb
index dc248e48..b6dd685c 100644
--- a/meta-arm/recipes-bsp/hafnium/hafnium_2.5.bb
+++ b/meta-arm/recipes-bsp/hafnium/hafnium_2.5.bb
@@ -9,7 +9,7 @@ PACKAGE_ARCH = "${MACHINE_ARCH}"
 
 inherit deploy python3native pkgconfig
 
-SRC_URI = "gitsm://git.trustedfirmware.org/hafnium/hafnium.git;protocol=https \
+SRC_URI = "gitsm://git.trustedfirmware.org/hafnium/hafnium.git;protocol=https;branch=master \
            file://hashbang.patch \
            file://pkg-config-native.patch \
            file://native-dtc.patch"
diff --git a/meta-arm/recipes-bsp/scp-firmware/scp-firmware_2.8.0.bb b/meta-arm/recipes-bsp/scp-firmware/scp-firmware_2.8.0.bb
index d40d82db..40648aa4 100644
--- a/meta-arm/recipes-bsp/scp-firmware/scp-firmware_2.8.0.bb
+++ b/meta-arm/recipes-bsp/scp-firmware/scp-firmware_2.8.0.bb
@@ -7,7 +7,7 @@ LIC_FILES_CHKSUM = "file://license.md;beginline=5;md5=9db9e3d2fb8d9300a6c3d15101
                     file://contrib/cmsis/git/LICENSE.txt;md5=e3fc50a88d0a364313df4b21ef20c29e"
 
 SRC_URI = "\
-    gitsm://github.com/ARM-software/SCP-firmware.git;protocol=https \
+    gitsm://github.com/ARM-software/SCP-firmware.git;protocol=https;branch=master \
     file://0001-smt-Make-status-and-length-volatile-for-mod_smt_memo.patch \
 "
 SRCREV  = "043de77f220a0b4b0ec3aa367bd515a9e9df2a29"
diff --git a/meta-arm/recipes-bsp/trusted-firmware-a/trusted-firmware-a.inc b/meta-arm/recipes-bsp/trusted-firmware-a/trusted-firmware-a.inc
index 0d49a0a2..39b51566 100644
--- a/meta-arm/recipes-bsp/trusted-firmware-a/trusted-firmware-a.inc
+++ b/meta-arm/recipes-bsp/trusted-firmware-a/trusted-firmware-a.inc
@@ -7,7 +7,7 @@ PACKAGE_ARCH = "${MACHINE_ARCH}"
 
 inherit deploy
 
-SRC_URI = "git://git.trustedfirmware.org/TF-A/trusted-firmware-a.git;protocol=https;name=tfa \
+SRC_URI = "git://git.trustedfirmware.org/TF-A/trusted-firmware-a.git;protocol=https;name=tfa;branch=master \
            file://ssl.patch"
 UPSTREAM_CHECK_GITTAGREGEX = "^v(?P<pver>\d+(\.\d+)+)$"
 
diff --git a/meta-arm/recipes-bsp/uefi/edk2-firmware.inc b/meta-arm/recipes-bsp/uefi/edk2-firmware.inc
index 4b440860..2f6f42c0 100644
--- a/meta-arm/recipes-bsp/uefi/edk2-firmware.inc
+++ b/meta-arm/recipes-bsp/uefi/edk2-firmware.inc
@@ -12,8 +12,8 @@ LIC_FILES_CHKSUM = "file://License.txt;md5=2b415520383f7964e96700ae12b4570a"
 LIC_FILES_CHKSUM += "file://edk2-platforms/License.txt;md5=2b415520383f7964e96700ae12b4570a"
 
 # These can be overridden as needed
-EDK2_SRC_URI = "gitsm://github.com/tianocore/edk2.git"
-EDK2_PLATFORMS_SRC_URI = "git://github.com/tianocore/edk2-platforms.git"
+EDK2_SRC_URI = "gitsm://github.com/tianocore/edk2.git;branch=master;protocol=https"
+EDK2_PLATFORMS_SRC_URI = "git://github.com/tianocore/edk2-platforms.git;branch=master;protocol=https"
 
 SRC_URI = "\
     ${EDK2_SRC_URI};name=edk2;destsuffix=edk2;nobranch=1 \
diff --git a/meta-arm/recipes-devtools/fiptool/fiptool-native_2.5.bb b/meta-arm/recipes-devtools/fiptool/fiptool-native_2.5.bb
index dd36eca8..1d771b6d 100644
--- a/meta-arm/recipes-devtools/fiptool/fiptool-native_2.5.bb
+++ b/meta-arm/recipes-devtools/fiptool/fiptool-native_2.5.bb
@@ -5,7 +5,7 @@
 DESCRIPTION = "fiptool - Trusted Firmware tool for packaging"
 LICENSE = "BSD-3-Clause"
 
-SRC_URI = "git://git.trustedfirmware.org/TF-A/trusted-firmware-a.git;destsuffix=fiptool-${PV};protocol=https \
+SRC_URI = "git://git.trustedfirmware.org/TF-A/trusted-firmware-a.git;destsuffix=fiptool-${PV};protocol=https;branch=master \
            file://ssl.patch"
 LIC_FILES_CHKSUM = "file://docs/license.rst;md5=713afe122abbe07f067f939ca3c480c5"
 
diff --git a/meta-arm/recipes-devtools/gator-daemon/gator-daemon_7.7.0.bb b/meta-arm/recipes-devtools/gator-daemon/gator-daemon_7.7.0.bb
index b3ba4376..91b7d64f 100644
--- a/meta-arm/recipes-devtools/gator-daemon/gator-daemon_7.7.0.bb
+++ b/meta-arm/recipes-devtools/gator-daemon/gator-daemon_7.7.0.bb
@@ -16,7 +16,7 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=b234ee4d69f5fce4486a80fdaf4a4263 \
                    "
 
 SRCREV = "9d8d75fa08352470c51abc23fe3b314879bd8b78"
-SRC_URI = "git://github.com/ARM-software/gator.git;protocol=http;branch=main \
+SRC_URI = "git://github.com/ARM-software/gator.git;protocol=http;branch=main;protocol=https \
            file://0001-Sources.mk-Remove-xml-PmuXMLParser.h-header-from-GAT.patch;striplevel=2 \
           "
 
diff --git a/meta-arm/recipes-devtools/opencsd/opencsd_1.1.0.bb b/meta-arm/recipes-devtools/opencsd/opencsd_1.1.0.bb
index e77433d6..804efb50 100644
--- a/meta-arm/recipes-devtools/opencsd/opencsd_1.1.0.bb
+++ b/meta-arm/recipes-devtools/opencsd/opencsd_1.1.0.bb
@@ -3,7 +3,7 @@ HOMEPAGE = "https://github.com/Linaro/OpenCSD"
 LICENSE = "BSD-3-Clause"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=ad8cb685eb324d2fa2530b985a43f3e5"
 
-SRC_URI = "git://github.com/Linaro/OpenCSD;protocol=https"
+SRC_URI = "git://github.com/Linaro/OpenCSD;protocol=https;branch=master"
 SRCREV = "54c3f67811fbcea853b7d223383d4a755819bb7e"
 
 S = "${WORKDIR}/git"
diff --git a/meta-arm/recipes-security/optee/optee-client.inc b/meta-arm/recipes-security/optee/optee-client.inc
index 1642b0d0..3b9943cc 100644
--- a/meta-arm/recipes-security/optee/optee-client.inc
+++ b/meta-arm/recipes-security/optee/optee-client.inc
@@ -8,7 +8,7 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=69663ab153298557a59c67a60a743e5b"
 inherit systemd update-rc.d cmake
 
 SRC_URI = " \
-    git://github.com/OP-TEE/optee_client.git \
+    git://github.com/OP-TEE/optee_client.git;branch=master;protocol=https \
     file://tee-supplicant.service \
     file://tee-supplicant.sh \
 "
diff --git a/meta-arm/recipes-security/optee/optee-examples.inc b/meta-arm/recipes-security/optee/optee-examples.inc
index b74344ac..921fa18d 100644
--- a/meta-arm/recipes-security/optee/optee-examples.inc
+++ b/meta-arm/recipes-security/optee/optee-examples.inc
@@ -11,7 +11,7 @@ inherit python3native
 
 require optee.inc
 
-SRC_URI = "git://github.com/linaro-swg/optee_examples.git \
+SRC_URI = "git://github.com/linaro-swg/optee_examples.git;branch=master;protocol=https \
            file://0001-plugins-Honour-default-cross-compiler-environment-se.patch \
            file://0002-Makefile-Enable-plugins-installation-in-rootfs.patch \
           "
diff --git a/meta-arm/recipes-security/optee/optee-os.inc b/meta-arm/recipes-security/optee/optee-os.inc
index 3d707acf..277646e7 100644
--- a/meta-arm/recipes-security/optee/optee-os.inc
+++ b/meta-arm/recipes-security/optee/optee-os.inc
@@ -14,7 +14,7 @@ DEPENDS = "python3-pycryptodome-native python3-pyelftools-native"
 
 DEPENDS:append:toolchain-clang = " compiler-rt"
 
-SRC_URI = "git://github.com/OP-TEE/optee_os.git"
+SRC_URI = "git://github.com/OP-TEE/optee_os.git;branch=master;protocol=https"
 
 S = "${WORKDIR}/git"
 B = "${WORKDIR}/build"
diff --git a/meta-arm/recipes-security/optee/optee-test.inc b/meta-arm/recipes-security/optee/optee-test.inc
index 0a8e56ca..99656a14 100644
--- a/meta-arm/recipes-security/optee/optee-test.inc
+++ b/meta-arm/recipes-security/optee/optee-test.inc
@@ -10,7 +10,7 @@ require optee.inc
 
 DEPENDS = "optee-client optee-os python3-pycryptodome-native"
 
-SRC_URI = "git://github.com/OP-TEE/optee_test.git \
+SRC_URI = "git://github.com/OP-TEE/optee_test.git;branch=master;protocol=https \
            file://run-ptest \
           "
 
diff --git a/meta-atp/recipes-devtools/atp/atp-source_3.1.inc b/meta-atp/recipes-devtools/atp/atp-source_3.1.inc
index e5442c9c..de24ef83 100644
--- a/meta-atp/recipes-devtools/atp/atp-source_3.1.inc
+++ b/meta-atp/recipes-devtools/atp/atp-source_3.1.inc
@@ -1,4 +1,4 @@
-ATP_SRC = "git://github.com/ARM-software/ATP-Engine.git;protocol=https"
+ATP_SRC = "git://github.com/ARM-software/ATP-Engine.git;protocol=https;branch=master"
 ATP_REV = "be1066029d6256626b37be004e2a663fbc29f37e"
 ATP_LIC = "BSD-3-Clause-Clear"
 ATP_LIC_MD5 = "e836b5992257064f488715d9a59752c3"