diff --git a/.github/nightly-version b/.github/nightly-version
index 45e51c4c..10423e5c 100644
--- a/.github/nightly-version
+++ b/.github/nightly-version
@@ -1 +1 @@
-nightly-2025-08-01
+nightly-2025-09-01
diff --git a/Cargo.lock b/Cargo.lock
index ef9430b4..01f73bb4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -11490,7 +11490,7 @@ dependencies = [
 [[package]]
 name = "sp-maybe-compressed-blob"
 version = "11.0.0"
-source = "git+https://github.com/serai-dex/polkadot-sdk?branch=serai-next#ebfc5f338a9752403fa07e88dd072b1d6de7acfc"
+source = "git+https://github.com/serai-dex/patch-polkadot-sdk?rev=19c487d6aa9893b6b09a21ce0ab8aefb1c299186#19c487d6aa9893b6b09a21ce0ab8aefb1c299186"
 dependencies = [
  "thiserror 2.0.16",
  "zstd 0.13.3",
@@ -12015,8 +12015,8 @@ dependencies = [
 
 [[package]]
 name = "substrate-wasm-builder"
-version = "25.0.0"
-source = "git+https://github.com/serai-dex/polkadot-sdk?branch=serai-next#ebfc5f338a9752403fa07e88dd072b1d6de7acfc"
+version = "26.0.1"
+source = "git+https://github.com/serai-dex/patch-polkadot-sdk?rev=19c487d6aa9893b6b09a21ce0ab8aefb1c299186#19c487d6aa9893b6b09a21ce0ab8aefb1c299186"
 dependencies = [
  "build-helper",
  "cargo_metadata",
diff --git a/crypto/dkg/musig/src/lib.rs b/crypto/dkg/musig/src/lib.rs
index b44b11c2..b4e435b5 100644
--- a/crypto/dkg/musig/src/lib.rs
+++ b/crypto/dkg/musig/src/lib.rs
@@ -150,7 +150,7 @@ pub fn musig<C: Ciphersuite>(
   }
   let group_key = multiexp::multiexp(&multiexp);
   debug_assert_eq!(our_pub_key, verification_shares[&params.i()]);
-  debug_assert_eq!(musig_key_vartime::<C>(context, keys).unwrap(), group_key);
+  debug_assert_eq!(musig_key_vartime::<C>(context, keys), Ok(group_key));
 
   ThresholdKeys::new(
     params,
diff --git a/deny.toml b/deny.toml
index ea6657af..25cd1b2f 100644
--- a/deny.toml
+++ b/deny.toml
@@ -137,5 +137,5 @@ allow-git = [
   "https://github.com/monero-oxide/monero-oxide",
   "https://github.com/serai-dex/substrate-bip39",
   "https://github.com/serai-dex/substrate",
-  "https://github.com/serai-dex/polkadot-sdk",
+  "https://github.com/serai-dex/patch-polkadot-sdk",
 ]
diff --git a/spec/Getting Started.md b/spec/Getting Started.md
index 92897b70..a2716582 100644
--- a/spec/Getting Started.md	
+++ b/spec/Getting Started.md	
@@ -32,7 +32,7 @@ rustup toolchain install nightly
 rustup target add wasm32v1-none --toolchain nightly
 ```
 
-### Install Solidity
+### Install Solidity with `svm`
 
 ```
 cargo install svm-rs
@@ -40,14 +40,6 @@ svm install 0.8.26
 svm use 0.8.26
 ```
 
-### Install Solidity Compiler Version Manager
-
-```
-cargo install svm-rs
-svm install 0.8.25
-svm use 0.8.25
-```
-
 ### Install foundry (for tests)
 
 ```
diff --git a/substrate/runtime/Cargo.toml b/substrate/runtime/Cargo.toml
index 96ded956..8af6f8e6 100644
--- a/substrate/runtime/Cargo.toml
+++ b/substrate/runtime/Cargo.toml
@@ -75,7 +75,7 @@ frame-system-rpc-runtime-api = { git = "https://github.com/serai-dex/substrate",
 pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/serai-dex/substrate", default-features = false }
 
 [build-dependencies]
-substrate-wasm-builder = { git = "https://github.com/serai-dex/polkadot-sdk", branch = "serai-next" }
+substrate-wasm-builder = { git = "https://github.com/serai-dex/patch-polkadot-sdk", rev = "19c487d6aa9893b6b09a21ce0ab8aefb1c299186" }
 
 [features]
 std = [