diff --git a/src/bls/src/bls_c_impl.hpp b/src/bls/src/bls_c_impl.hpp
index ae30960489b6d..bb1fba857abf0 100644
--- a/src/bls/src/bls_c_impl.hpp
+++ b/src/bls/src/bls_c_impl.hpp
@@ -452,6 +452,8 @@ int blsAggregateVerifyNoCheck(const blsSignature *sig, const blsPublicKey *pubVe
 	std::vector<std::future<GT>> futuresMiller;
 	std::vector<std::future<bool>> futures;
 	size_t numThreads = std::thread::hardware_concurrency();
+	
+	futures.reserve(numThreads);
 
 	while (n > 0) {
 		size_t m = mcl::fp::min_<size_t>(n, N);
diff --git a/src/blsct/range_proof/bulletproofs/range_proof_logic.cpp b/src/blsct/range_proof/bulletproofs/range_proof_logic.cpp
index 0524f9fdab11c..c0d8a3ea3c24b 100644
--- a/src/blsct/range_proof/bulletproofs/range_proof_logic.cpp
+++ b/src/blsct/range_proof/bulletproofs/range_proof_logic.cpp
@@ -253,6 +253,8 @@ bool RangeProofLogic<T>::VerifyProofs(
     // Vector to hold future results from async tasks
     std::vector<std::future<bool>> futures;
 
+    futures.reserve(proof_transcripts.size());
+
     // Launch a verification task for each proof transcript in parallel
     for (const RangeProofWithTranscript<T>& p : proof_transcripts) {
         futures.emplace_back(std::async(std::launch::async, [this, &p, max_mn]() -> bool {