diff --git a/ddprof-lib/src/main/cpp/os.h b/ddprof-lib/src/main/cpp/os.h
index f335bc87..143abbb3 100644
--- a/ddprof-lib/src/main/cpp/os.h
+++ b/ddprof-lib/src/main/cpp/os.h
@@ -84,6 +84,7 @@ class OS {
 
   static void *safeAlloc(size_t size);
   static void safeFree(void *addr, size_t size);
+  static int mprotect(void *addr, size_t len, int prot);
 
   static bool getCpuDescription(char *buf, size_t size);
   static u64 getProcessCpuTime(u64 *utime, u64 *stime);
diff --git a/ddprof-lib/src/main/cpp/os_linux.cpp b/ddprof-lib/src/main/cpp/os_linux.cpp
index 1d224123..03adb4cc 100644
--- a/ddprof-lib/src/main/cpp/os_linux.cpp
+++ b/ddprof-lib/src/main/cpp/os_linux.cpp
@@ -273,6 +273,10 @@ void *OS::safeAlloc(size_t size) {
 
 void OS::safeFree(void *addr, size_t size) { syscall(__NR_munmap, addr, size); }
 
+int OS::mprotect(void *addr, size_t len, int prot) {
+  return mprotect(addr, len, prot);
+}
+
 bool OS::getCpuDescription(char *buf, size_t size) {
   int fd = open("/proc/cpuinfo", O_RDONLY);
   if (fd == -1) {
diff --git a/ddprof-lib/src/main/cpp/os_macos.cpp b/ddprof-lib/src/main/cpp/os_macos.cpp
index 632a5d3f..9098fe59 100644
--- a/ddprof-lib/src/main/cpp/os_macos.cpp
+++ b/ddprof-lib/src/main/cpp/os_macos.cpp
@@ -260,6 +260,10 @@ void *OS::safeAlloc(size_t size) {
 
 void OS::safeFree(void *addr, size_t size) { munmap(addr, size); }
 
+int OS::mprotect(void *addr, size_t len, int prot) {
+  return mprotect(addr, len, prot);
+}
+
 bool OS::getCpuDescription(char *buf, size_t size) {
   return sysctlbyname("machdep.cpu.brand_string", buf, &size, NULL, 0) == 0;
 }
diff --git a/gradle/ap-lock.properties b/gradle/ap-lock.properties
index 62c8ba03..84c17186 100644
--- a/gradle/ap-lock.properties
+++ b/gradle/ap-lock.properties
@@ -1,2 +1,2 @@
 branch=dd/master
-commit=87b7b42ec65be0a00a67e3f9451fb8e4d472b188
\ No newline at end of file
+commit=5930966a92860f6e5d2d89ab6faab5815720bad9
\ No newline at end of file