diff --git a/Cargo.lock b/Cargo.lock
index c3afa1ff5..b43194b52 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -10,9 +10,9 @@ checksum = "8f27d075294830fcab6f66e320dab524bc6d048f4a151698e153205559113772"
 
 [[package]]
 name = "activitypub_federation"
-version = "0.6.2"
+version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ce5c105760d36108026acde9cb779d8ef4714d5e551f248a9e8e0369b6671b78"
+checksum = "cd8c76cad52a3d0f637f1f4ba06d96ac63c92512082f6a1ca86145b66a0a5371"
 dependencies = [
  "activitystreams-kinds",
  "actix-web",
@@ -2946,7 +2946,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fc2f4eb4bc735547cfed7c0a4922cbd04a4655978c09b54f1f7b228750664c34"
 dependencies = [
  "cfg-if",
- "windows-targets 0.48.5",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index 136dd127f..ce0aa0286 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -88,7 +88,7 @@ lemmy_api_common = { version = "=1.0.0-alpha.2", path = "./crates/api_common" }
 lemmy_routes = { version = "=1.0.0-alpha.2", path = "./crates/routes" }
 lemmy_db_views = { version = "=1.0.0-alpha.2", path = "./crates/db_views" }
 lemmy_federate = { version = "=1.0.0-alpha.2", path = "./crates/federate" }
-activitypub_federation = { version = "0.6.2", default-features = false, features = [
+activitypub_federation = { version = "0.6.3", default-features = false, features = [
   "actix-web",
 ] }
 diesel = "2.2.7"
@@ -178,3 +178,8 @@ rustls = { workspace = true }
 tokio.workspace = true
 clap = { workspace = true }
 mimalloc = "0.1.43"
+
+# Speedup RSA key generation
+# https://github.com/RustCrypto/RSA/blob/master/README.md#example
+[profile.dev.package.num-bigint-dig]
+opt-level = 3