diff --git a/README.md b/README.md
index 30eebe188b61e3b2712ad54098f85cff5df08029..6445dddb759cc8c074beaea877f122f714d1970b 100644
--- a/README.md
+++ b/README.md
@@ -98,6 +98,14 @@ another shell/terminal. Run this in the ohoe directory:
 The current directory will be changed to the build directory, from where you
 should be running your `bitbake` build commands and so on.
 
+## OpenHarmony version
+
+You can choose which version of OpenHarmony to be built by uncommenting the
+variable `OPENHARMONY_VERSION` in the `local.conf` file and setting it to the
+desired value.
+
+Supported versions are `3.0` and `3.1`.
+
 ## QEMU example image
 
 The meta-openharmony provides an example image recipe which can be used for
diff --git a/conf/local.conf.sample b/conf/local.conf.sample
index 24082fb5496553ca96dfc3fe9cadbcf18df7a6ed..0e337538f11c80eaa763271153251c15fd5fa9f9 100644
--- a/conf/local.conf.sample
+++ b/conf/local.conf.sample
@@ -106,3 +106,11 @@ RM_WORK_EXCLUDE += "qemu-helper-native"
 # Use out-of-China mirror of OpenHarmony git repositories.
 #
 MIRRORS:prepend = "git://gitee.com/openharmony/ git://github.com/openharmony/ \n "
+
+#
+# Choose OpenHarmony version
+#
+# Uncomment to overwrite the variable OPENHARMONY_VERSION set in the
+# distro configuration file.
+#
+#OPENHARMONY_VERSION = "3.0"
diff --git a/recipes-openharmony/openharmony/openharmony-standard-sources-3.1.inc b/recipes-openharmony/openharmony/openharmony-standard-sources-3.1.inc
index b25f34b97f7a00cf073596f8ae4c0c9561174d89..26bcc97ea794d531d6a4bdb1cd4a7257d46a98d2 100644
--- a/recipes-openharmony/openharmony/openharmony-standard-sources-3.1.inc
+++ b/recipes-openharmony/openharmony/openharmony-standard-sources-3.1.inc
@@ -77,15 +77,8 @@ SRC_URI += "${GITEE_URL}/developtools_hdc_standard.git;protocol=https;nobranch=1
 SRC_URI += "${GITEE_URL}/developtools_profiler.git;protocol=https;nobranch=1;branch=OpenHarmony-v3.1-Release;rev=69cc2df0204581de2dec7d19dbce4107c2e43057;destsuffix=${OH_SRCDIR}/developtools/profiler;lfs=0"
 SRC_URI += "${GITEE_URL}/device_qemu.git;protocol=https;nobranch=1;branch=OpenHarmony-v3.1-Release;rev=5a8cfa754c3696925f3d6a60e7d760c90c70787c;destsuffix=${OH_SRCDIR}/device/qemu"
 SRC_URI += "${GITEE_URL}/drivers_adapter.git;protocol=https;nobranch=1;branch=OpenHarmony-v3.1-Release;rev=a8aef38d2a9a25d9ffda5e5ccf96597ab702cf67;destsuffix=${OH_SRCDIR}/drivers/adapter"
-
-# The 2 next repositories are set to different revisions from the ones
-# they are set to in the official release of OpenHarmony 3.0-LTS.
-# These revisions are known to boot the Linux kernel on the HiSpark AI
-# Camera Dev Kit (Hi3516DV300 board), enabling support for emmc mmcblk0
-# (i.e. where the rootfs resides).
 SRC_URI += "${GITEE_URL}/drivers_adapter_khdf_linux.git;protocol=https;nobranch=1;branch=OpenHarmony-v3.1-Release;rev=c2122b866972b9ecf49df0e03732a8b712f3ee97;destsuffix=${OH_SRCDIR}/drivers/adapter/khdf/linux"
 SRC_URI += "${GITEE_URL}/drivers_framework.git;protocol=https;nobranch=1;branch=OpenHarmony-v3.1-Release;rev=54fb2f84e045d9c0ce153f8bb8aaed18acddb968;destsuffix=${OH_SRCDIR}/drivers/framework"
-
 SRC_URI += "${GITEE_URL}/drivers_interface.git;protocol=https;nobranch=1;branch=OpenHarmony-v3.1-Release;rev=4bdf4e1ea870bc08024718a5775c22757d9c9582;destsuffix=${OH_SRCDIR}/drivers/interface"
 SRC_URI += "${GITEE_URL}/drivers_peripheral.git;protocol=https;nobranch=1;branch=OpenHarmony-v3.1-Release;rev=6b0270147fb817a94acacaa34d418d8acb9e9223;destsuffix=${OH_SRCDIR}/drivers/peripheral"
 SRC_URI += "${GITEE_URL}/aafwk_standard.git;protocol=https;nobranch=1;branch=OpenHarmony-v3.1-Release;rev=4c0d3f8985b2212782476d9f2010acac90fda7e3;destsuffix=${OH_SRCDIR}/foundation/aafwk/standard"
@@ -135,7 +128,6 @@ SRC_URI += "${GITEE_URL}/third_party_exfat-utils.git;protocol=https;nobranch=1;b
 SRC_URI += "${GITEE_URL}/third_party_expat.git;protocol=https;nobranch=1;branch=OpenHarmony-v3.1-Release;rev=c299d0a4d0e70d0809ebff81a0c81275b75736fd;destsuffix=${OH_SRCDIR}/third_party/expat"
 SRC_URI += "${GITEE_URL}/third_party_f2fs-tools.git;protocol=https;nobranch=1;branch=OpenHarmony-v3.1-Release;rev=045b625c0f02123d86f800c1ea1ca7587e812b40;destsuffix=${OH_SRCDIR}/third_party/f2fs-tools"
 SRC_URI += "${GITEE_URL}/third_party_ffmpeg.git;protocol=https;nobranch=1;branch=OpenHarmony-v3.1-Release;rev=3c2931b6ecb6abb7c845197c79a26a79fb4ded7d;destsuffix=${OH_SRCDIR}/third_party/ffmpeg"
-#SRC_URI += "${GITEE_URL}/third_party_flatbuffers.git;protocol=https;nobranch=1;branch=OpenHarmony-3.0-LTS;rev=503ba88ad7048df58d4fce0443f681c77f05f354;destsuffix=${OH_SRCDIR}/third_party/flatbuffers;lfs=0"
 SRC_URI += "${GITEE_URL}/third_party_flutter.git;protocol=https;nobranch=1;branch=OpenHarmony-v3.1-Release;rev=f56c51f210e04b1856cbfb2cae81c10bbb070422;destsuffix=${OH_SRCDIR}/third_party/flutter;lfs=0"
 SRC_URI += "${GITEE_URL}/third_party_fsck_msdos.git;protocol=https;nobranch=1;branch=OpenHarmony-v3.1-Release;rev=707f44ba9bd50cc6b0aad2b22e09f8b9cfd172fb;destsuffix=${OH_SRCDIR}/third_party/fsck_msdos"
 SRC_URI += "${GITEE_URL}/third_party_gettext.git;protocol=https;nobranch=1;branch=OpenHarmony-v3.1-Release;rev=7f6b21954643e899a9d86bee83658bcef75b13d9;destsuffix=${OH_SRCDIR}/third_party/gettext"