diff --git a/compos/compos_key_helper/compos_key_main.cpp b/compos/compos_key_helper/compos_key_main.cpp
index 77a9cf9..bb2bac8 100644
--- a/compos/compos_key_helper/compos_key_main.cpp
+++ b/compos/compos_key_helper/compos_key_main.cpp
@@ -57,7 +57,7 @@
 }
 
 int write_bcc() {
-    uint8_t bcc[2048];
+    uint8_t bcc[4096];
     size_t bcc_size = get_dice_attestation_chain(bcc, sizeof(bcc));
     if (bcc_size == 0) {
         LOG(ERROR) << "Failed to get attestation chain";
diff --git a/tests/testapk/src/native/testbinary.cpp b/tests/testapk/src/native/testbinary.cpp
index e95aa08..64f0839 100644
--- a/tests/testapk/src/native/testbinary.cpp
+++ b/tests/testapk/src/native/testbinary.cpp
@@ -96,7 +96,7 @@
         }
 
         ndk::ScopedAStatus getBcc(std::vector<uint8_t>* out) override {
-            uint8_t bcc[2048];
+            uint8_t bcc[4096];
             size_t bcc_size = get_dice_attestation_chain(bcc, sizeof(bcc));
             if (bcc_size == 0) {
                 return ndk::ScopedAStatus::