diff --git a/src/aur/client.cc b/src/aur/client.cc
index b1ddf99..61ab5ed 100644
--- a/src/aur/client.cc
+++ b/src/aur/client.cc
@@ -13,7 +13,9 @@
 #include <vector>
 
 #include "absl/container/flat_hash_set.h"
+#include "absl/functional/overload.h"
 #include "absl/status/status.h"
+#include "absl/strings/str_cat.h"
 #include "absl/strings/strip.h"
 
 namespace fs = std::filesystem;
@@ -299,20 +301,13 @@ ClientImpl::~ClientImpl() {
 }
 
 void ClientImpl::Cancel(const ActiveRequests::value_type& request) {
-  struct Visitor {
-    constexpr explicit Visitor(ClientImpl* aur) : aur(aur) {}
-
-    void operator()(CURL* curl) {
-      aur->FinishRequest(curl, CURLE_ABORTED_BY_CALLBACK,
-                         /*dispatch_callback=*/false);
-    }
-
-    void operator()(sd_event_source* source) { aur->FinishRequest(source); }
-
-    ClientImpl* aur;
-  };
-
-  std::visit(Visitor(this), request);
+  std::visit(absl::Overload{
+                 [this](CURL* curl) {
+                   FinishRequest(curl, CURLE_ABORTED_BY_CALLBACK,
+                                 /*dispatch_callback=*/false);
+                 },
+                 [this](sd_event_source* source) { FinishRequest(source); }},
+             request);
 }
 
 int ClientImpl::OnCancel(sd_event_source*, void* userdata) {
diff --git a/src/aur/package.cc b/src/aur/package.cc
index 9255a9d..9f783d1 100644
--- a/src/aur/package.cc
+++ b/src/aur/package.cc
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: MIT
 #include "aur/package.hh"
 
+#include "absl/base/no_destructor.h"
 #include "aur/json_internal.hh"
 
 namespace aur {
@@ -47,7 +48,7 @@ void from_json(const nlohmann::json& j, absl::Time& t) {
 
 void from_json(const nlohmann::json& j, Package& p) {
   // clang-format off
-  static const auto& callbacks = *new CallbackMap<Package>{
+  static const absl::NoDestructor<CallbackMap<Package>> kCallbacks({
     { "CheckDepends",     MakeValueCallback(&Package::checkdepends) },
     { "CoMaintainers",    MakeValueCallback(&Package::comaintainers) },
     { "Conflicts",        MakeValueCallback(&Package::conflicts) },
@@ -73,10 +74,10 @@ void from_json(const nlohmann::json& j, Package& p) {
     { "URL",              MakeValueCallback(&Package::upstream_url) },
     { "URLPath",          MakeValueCallback(&Package::aur_urlpath) },
     { "Version",          MakeValueCallback(&Package::version) },
-  };
+  });
   // clang-format on
 
-  DeserializeJsonObject(j, callbacks, p);
+  DeserializeJsonObject(j, *kCallbacks, p);
 }
 
 }  // namespace aur
diff --git a/src/aur/response.cc b/src/aur/response.cc
index 6557ec6..6cc2f4d 100644
--- a/src/aur/response.cc
+++ b/src/aur/response.cc
@@ -1,19 +1,20 @@
 // SPDX-License-Identifier: MIT
 #include "aur/response.hh"
 
+#include "absl/base/no_destructor.h"
 #include "aur/json_internal.hh"
 
 namespace aur::internal {
 
 void from_json(const nlohmann::json& j, RawRpcResponse& r) {
   // clang-format off
-  static const auto& callbacks = *new CallbackMap<RawRpcResponse>{
+  static const absl::NoDestructor<CallbackMap<RawRpcResponse>> kCallbacks({
     { "error",        MakeValueCallback(&RawRpcResponse::error) },
     { "results",      MakeValueCallback(&RawRpcResponse::results) },
-  };
+  });
   // clang-format on
 
-  DeserializeJsonObject(j, callbacks, r);
+  DeserializeJsonObject(j, *kCallbacks, r);
 }
 
 RawRpcResponse::RawRpcResponse(const std::string& json_bytes) {
diff --git a/subprojects/abseil-cpp.wrap b/subprojects/abseil-cpp.wrap
index 4e62885..9a8e072 100644
--- a/subprojects/abseil-cpp.wrap
+++ b/subprojects/abseil-cpp.wrap
@@ -1,13 +1,13 @@
 [wrap-file]
-directory = abseil-cpp-20230802.1
-source_url = https://github.com/abseil/abseil-cpp/archive/20230802.1.tar.gz
-source_filename = abseil-cpp-20230802.1.tar.gz
-source_hash = 987ce98f02eefbaf930d6e38ab16aa05737234d7afbab2d5c4ea7adbe50c28ed
-patch_filename = abseil-cpp_20230802.1-2_patch.zip
-patch_url = https://wrapdb.mesonbuild.com/v2/abseil-cpp_20230802.1-2/get_patch
-patch_hash = f6ceb55ca4b0995d826cbdefc0a37e0f8b6202d3e7ecb3436298f54d3a23942b
-source_fallback_url = https://github.com/mesonbuild/wrapdb/releases/download/abseil-cpp_20230802.1-2/abseil-cpp-20230802.1.tar.gz
-wrapdb_version = 20230802.1-2
+directory = abseil-cpp-20240722.0
+source_url = https://github.com/abseil/abseil-cpp/releases/download/20240722.0/abseil-cpp-20240722.0.tar.gz
+source_filename = abseil-cpp-20240722.0.tar.gz
+source_hash = f50e5ac311a81382da7fa75b97310e4b9006474f9560ac46f54a9967f07d4ae3
+patch_filename = abseil-cpp_20240722.0-1_patch.zip
+patch_url = https://wrapdb.mesonbuild.com/v2/abseil-cpp_20240722.0-1/get_patch
+patch_hash = 692bbbc39cacaba4dc4b0c8b2fbbe32736c9cde6377acfa0d52088797af14ded
+source_fallback_url = https://github.com/mesonbuild/wrapdb/releases/download/abseil-cpp_20240722.0-1/abseil-cpp-20240722.0.tar.gz
+wrapdb_version = 20240722.0-1
 
 [provide]
 absl_base = absl_base_dep