diff --git a/src/ios/SM_AFNetworking/SM_AFSecurityPolicy.m b/src/ios/SM_AFNetworking/SM_AFSecurityPolicy.m
index c15efb9..9f11d64 100644
--- a/src/ios/SM_AFNetworking/SM_AFSecurityPolicy.m
+++ b/src/ios/SM_AFNetworking/SM_AFSecurityPolicy.m
@@ -156,7 +156,15 @@ static NSArray * AFPublicKeyTrustChainForServerTrust(SecTrustRef serverTrust) {
 @implementation SM_AFSecurityPolicy
 
 + (NSSet *)certificatesInBundle:(NSBundle *)bundle {
-    NSArray *paths = [bundle pathsForResourcesOfType:@"cer" inDirectory:@"www/certificates"];
+    NSArray* paths = @[];
+    for(NSString* dir in @[@"www", @"public"]) {
+        NSArray* certificatePaths = [bundle pathsForResourcesOfType:@"cer" inDirectory: [NSString stringWithFormat:@"%@/certificates", dir]];
+        if(certificatePaths.count > 0) {
+            paths = certificatePaths;
+            break;
+        }
+    }
+    
     NSMutableSet *certificates = [NSMutableSet setWithCapacity:[paths count]];
 
     for (NSString *path in paths) {