diff --git a/meta-oe/recipes-devtools/microsoft-gsl/microsoft-gsl/run-ptest b/meta-oe/recipes-devtools/microsoft-gsl/microsoft-gsl/run-ptest
index 2d5bdf4ff2..c6ce411029 100644
--- a/meta-oe/recipes-devtools/microsoft-gsl/microsoft-gsl/run-ptest
+++ b/meta-oe/recipes-devtools/microsoft-gsl/microsoft-gsl/run-ptest
@@ -1,4 +1,14 @@
 #!/bin/sh
 
-gsl_tests && echo "PASS: gsl_tests" || echo "FAIL: gsl_tests"
-gsl_noexcept_tests && echo "PASS: gsl_noexcept_tests" || echo "FAIL: gsl_noexcept_tests"
+# Upstream builds one executable per tests/*.cpp source, so iterate rather
+# than naming them individually.
+cd "$(dirname "$0")" || exit 1
+
+for t in *_tests; do
+    [ -x "./$t" ] || continue
+    if "./$t"; then
+        echo "PASS: $t"
+    else
+        echo "FAIL: $t"
+    fi
+done
diff --git a/meta-oe/recipes-devtools/microsoft-gsl/microsoft-gsl_4.2.2.bb b/meta-oe/recipes-devtools/microsoft-gsl/microsoft-gsl_5.0.0.bb
similarity index 75%
rename from meta-oe/recipes-devtools/microsoft-gsl/microsoft-gsl_4.2.2.bb
rename to meta-oe/recipes-devtools/microsoft-gsl/microsoft-gsl_5.0.0.bb
index 3d795878b2..1521ed1111 100644
--- a/meta-oe/recipes-devtools/microsoft-gsl/microsoft-gsl_4.2.2.bb
+++ b/meta-oe/recipes-devtools/microsoft-gsl/microsoft-gsl_5.0.0.bb
@@ -8,10 +8,10 @@ HOMEPAGE = "https://github.com/microsoft/GSL"
 LICENSE = "MIT"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=363055e71e77071107ba2bb9a54bd9a7"
 
-SRC_URI = "git://github.com/microsoft/GSL.git;protocol=https;branch=rel/4.2;tag=v${PV} \
+SRC_URI = "git://github.com/microsoft/GSL.git;protocol=https;branch=rel/5.0;tag=v${PV} \
            file://run-ptest \
            "
-SRCREV = "152d6eb989a1ecd23fe9c9cfb2fb8cfc7c0cd0c1"
+SRCREV = "417ef685eafd626db765f0027b7fc5a0057e0770"
 
 inherit cmake pkgconfig ptest
 
@@ -24,18 +24,22 @@ PACKAGECONFIG ??= "${@bb.utils.contains('PTEST_ENABLED', '1', 'ptest','', d)}"
 PACKAGECONFIG[ptest] = "-DGSL_TEST=ON,-DGSL_TEST=OFF,googletest"
 
 # clang disagrees with https://github.com/google/googletest/pull/3457
-CXXFLAGS:append:toolchain-clang = " -Wno-error=switch-default"
+# The tests are built with -Weverything -Werror, so each clang release turns
+# its new diagnostics into build failures.
+CXXFLAGS:append:toolchain-clang = "\
+    -Wno-error=switch-default \
+    -Wno-unknown-warning-option \
+    -Wno-error=lifetime-safety-intra-tu-suggestions \
+    -Wno-error=lifetime-safety-intra-tu-constructor-suggestions \
+"
 # Disable disabled-macro-expansion warning as error as its seen on musl
 CXXFLAGS:append:toolchain-clang:libc-musl = " -Wno-error=disabled-macro-expansion"
 
 do_install_ptest() {
-    install -d ${D}${bindir}
-    install -m 0755 ${B}/tests/gsl_tests ${D}${bindir}
-    install -m 0755 ${B}/tests/gsl_noexcept_tests ${D}${bindir}
+    install -d ${D}${PTEST_PATH}
+    install -m 0755 ${B}/tests/*_tests ${D}${PTEST_PATH}
 }
 
-FILES:${PN}-ptest = "${bindir}/gsl*_tests"
-
 # there is already other gsl recipe, so recipe name does not match the real component name
 CVE_PRODUCT = "microsoft:gsl"