diff --git a/poky/meta/recipes-support/libcap/files/0001-tests-do-not-statically-link-a-test.patch b/poky/meta/recipes-support/libcap/files/0001-tests-do-not-statically-link-a-test.patch
index e568cc4..912f33f 100644
--- a/poky/meta/recipes-support/libcap/files/0001-tests-do-not-statically-link-a-test.patch
+++ b/poky/meta/recipes-support/libcap/files/0001-tests-do-not-statically-link-a-test.patch
@@ -1,4 +1,4 @@
-From 1179b423cce8d119b42cebfb3daa77c540fdca43 Mon Sep 17 00:00:00 2001
+From 24d59c99bcba065f1f40f49f870a5f6483b4b078 Mon Sep 17 00:00:00 2001
 From: Alexander Kanavin <alex.kanavin@gmail.com>
 Date: Wed, 15 Jan 2020 17:16:28 +0100
 Subject: [PATCH] tests: do not statically link a test
@@ -7,20 +7,40 @@
 
 Upstream-Status: Inappropriate [oe-core specific]
 Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
+
 ---
- tests/Makefile | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
+ tests/Makefile | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
 
 diff --git a/tests/Makefile b/tests/Makefile
-index 7162cf0..6af47af 100644
+index f9cec56..aa0d09b 100644
 --- a/tests/Makefile
 +++ b/tests/Makefile
-@@ -29,7 +29,7 @@ psx_test_wrap: psx_test.c $(DEPS)
+@@ -29,23 +29,23 @@ psx_test_wrap: psx_test.c $(DEPS)
  run_libcap_psx_test: libcap_psx_test
  
  libcap_psx_test: libcap_psx_test.c $(DEPS)
 -	$(CC) $(CFLAGS) $(IPATH) $< -o $@ $(LIBCAPLIB) $(LIBPSXLIB) -Wl,-wrap,pthread_create --static
 +	$(CC) $(CFLAGS) $(IPATH) $< -o $@ $(LIBCAPLIB) $(LIBPSXLIB) -Wl,-wrap,pthread_create
  
+ run_libcap_launch_test: libcap_launch_test libcap_psx_launch_test noop
+ 	sudo ./libcap_launch_test
+ 	sudo ./libcap_psx_launch_test
+ 
+ libcap_launch_test: libcap_launch_test.c $(DEPS)
+-	$(CC) $(CFLAGS) $(IPATH) $< -o $@ $(LIBCAPLIB) --static
++	$(CC) $(CFLAGS) $(IPATH) $< -o $@ $(LIBCAPLIB)
+ 
+ # this varies only slightly from the above insofar as it currently
+ # only links in the pthreads fork support. TODO() we need to change
+ # the source to do something interesting with pthreads.
+ libcap_psx_launch_test: libcap_launch_test.c $(DEPS)
+-	$(CC) $(CFLAGS) $(IPATH) -DWITH_PTHREADS $< -o $@ $(LIBCAPLIB) $(LIBPSXLIB) -Wl,-wrap,pthread_create --static
++	$(CC) $(CFLAGS) $(IPATH) -DWITH_PTHREADS $< -o $@ $(LIBCAPLIB) $(LIBPSXLIB) -Wl,-wrap,pthread_create
+ 
+ noop: noop.c
+-	$(CC) $(CFLAGS) $< -o $@ --static
++	$(CC) $(CFLAGS) $< -o $@
+ 
  clean:
- 	rm -f psx_test psx_test_wrap libcap_psx_test
+ 	rm -f psx_test psx_test_wrap libcap_psx_test libcap_launch_test *~
diff --git a/poky/meta/recipes-support/libcap/files/0004-psx.c-replace-pthread_yield-with-standard-sched_yiel.patch b/poky/meta/recipes-support/libcap/files/0004-psx.c-replace-pthread_yield-with-standard-sched_yiel.patch
new file mode 100644
index 0000000..848ceb2
--- /dev/null
+++ b/poky/meta/recipes-support/libcap/files/0004-psx.c-replace-pthread_yield-with-standard-sched_yiel.patch
@@ -0,0 +1,24 @@
+From a2c4cdb05d0e382101b13944c09c4375e8d7de5f Mon Sep 17 00:00:00 2001
+From: Alexander Kanavin <alex.kanavin@gmail.com>
+Date: Tue, 31 Mar 2020 13:39:28 +0200
+Subject: [PATCH] psx.c: replace pthread_yield() with standard sched_yield()
+
+This was causing failures when building with musl C library in
+particular.
+
+Upstream-Status: Pending
+Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
+---
+diff --git a/libcap/psx.c b/libcap/psx.c
+index 04d250f..7e4ac10 100644
+--- a/libcap/psx.c
++++ b/libcap/psx.c
+@@ -533,7 +533,7 @@ long int __psx_syscall(long int syscall_nr, ...) {
+ 	if (!waiting) {
+ 	    break;
+ 	}
+-	pthread_yield();
++	sched_yield();
+     }
+ 
+     errno = restore_errno;
diff --git a/poky/meta/recipes-support/libcap/libcap_2.32.bb b/poky/meta/recipes-support/libcap/libcap_2.33.bb
similarity index 90%
rename from poky/meta/recipes-support/libcap/libcap_2.32.bb
rename to poky/meta/recipes-support/libcap/libcap_2.33.bb
index d78a58f..bec492c 100644
--- a/poky/meta/recipes-support/libcap/libcap_2.32.bb
+++ b/poky/meta/recipes-support/libcap/libcap_2.33.bb
@@ -11,9 +11,10 @@
            file://0001-ensure-the-XATTR_NAME_CAPS-is-defined-when-it-is-use.patch \
            file://0002-tests-do-not-run-target-executables.patch \
            file://0001-tests-do-not-statically-link-a-test.patch \
+           file://0004-psx.c-replace-pthread_yield-with-standard-sched_yiel.patch \
            "
-SRC_URI[md5sum] = "7416119c9fdcfd0e8dd190a432c668e9"
-SRC_URI[sha256sum] = "1005e3d227f2340ad1e3360ef8b69d15e3c72a29c09f4894d7aac038bd26e2be"
+SRC_URI[md5sum] = "dcc6220b4a9bf260050b20c07edcddf4"
+SRC_URI[sha256sum] = "08edeaba2757021aeec45c4eeec52566675e0e0f5d4f057284d729e04f2643d6"
 
 UPSTREAM_CHECK_URI = "https://www.kernel.org/pub/linux/libs/security/linux-privs/${BPN}2/"