diff --git a/src/runtime/cpuprof.go b/src/runtime/cpuprof.go
index 2f7f6b4153..221e021a37 100644
--- a/src/runtime/cpuprof.go
+++ b/src/runtime/cpuprof.go
@@ -14,7 +14,6 @@ package runtime
 
 import (
 	"internal/abi"
-	"runtime/internal/atomic"
 	"runtime/internal/sys"
 	"unsafe"
 )
@@ -106,7 +105,7 @@ func SetCPUProfileRate(hz int) {
 //go:nowritebarrierrec
 func (p *cpuProfile) add(tagPtr *unsafe.Pointer, stk []uintptr) {
 	// Simple cas-lock to coordinate with setcpuprofilerate.
-	for !atomic.Cas(&prof.signalLock, 0, 1) {
+	for !prof.signalLock.CompareAndSwap(0, 1) {
 		// TODO: Is it safe to osyield here? https://go.dev/issue/52672
 		osyield()
 	}
@@ -123,7 +122,7 @@ func (p *cpuProfile) add(tagPtr *unsafe.Pointer, stk []uintptr) {
 		cpuprof.log.write(tagPtr, nanotime(), hdr[:], stk)
 	}
 
-	atomic.Store(&prof.signalLock, 0)
+	prof.signalLock.Store(0)
 }
 
 // addNonGo adds the non-Go stack trace to the profile.
@@ -143,7 +142,7 @@ func (p *cpuProfile) addNonGo(stk []uintptr) {
 	// process at a time. If not, this lock will serialize those too.
 	// The use of timer_create(2) on Linux to request process-targeted
 	// signals may have changed this.)
-	for !atomic.Cas(&prof.signalLock, 0, 1) {
+	for !prof.signalLock.CompareAndSwap(0, 1) {
 		// TODO: Is it safe to osyield here? https://go.dev/issue/52672
 		osyield()
 	}
@@ -157,7 +156,7 @@ func (p *cpuProfile) addNonGo(stk []uintptr) {
 		cpuprof.lostExtra++
 	}
 
-	atomic.Store(&prof.signalLock, 0)
+	prof.signalLock.Store(0)
 }
 
 // addExtra adds the "extra" profiling events,
diff --git a/src/runtime/proc.go b/src/runtime/proc.go
index c3144b4dde..a673e45071 100644
--- a/src/runtime/proc.go
+++ b/src/runtime/proc.go
@@ -4474,7 +4474,7 @@ func mcount() int32 {
 }
 
 var prof struct {
-	signalLock uint32
+	signalLock atomic.Uint32
 	hz         int32
 }
 
@@ -4628,14 +4628,14 @@ func setcpuprofilerate(hz int32) {
 	// it would deadlock.
 	setThreadCPUProfiler(0)
 
-	for !atomic.Cas(&prof.signalLock, 0, 1) {
+	for !prof.signalLock.CompareAndSwap(0, 1) {
 		osyield()
 	}
 	if prof.hz != hz {
 		setProcessCPUProfiler(hz)
 		prof.hz = hz
 	}
-	atomic.Store(&prof.signalLock, 0)
+	prof.signalLock.Store(0)
 
 	lock(&sched.lock)
 	sched.profilehz = hz