diff --git a/Cargo.lock b/Cargo.lock
index b1a047db..19c3becd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -151,9 +151,8 @@ dependencies = [
 
 [[package]]
 name = "crypto-bigint"
-version = "0.7.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "42a0d26b245348befa0c121944541476763dcc46ede886c88f9d12e1697d27c3"
+version = "0.7.5"
+source = "git+https://github.com/baloo/crypto-bigint.git?branch=baloo%2Fpush-qmwlxxnxqywl#d97f94730bf10f5f7daed4b1e29bfb3102c8dc7c"
 dependencies = [
  "cpubits",
  "ctutils",
@@ -970,7 +969,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32497e9a4c7b38532efcdebeef879707aa9f794296a4f0244f6f69e9bc8574bd"
 dependencies = [
  "fastrand",
- "getrandom 0.4.2",
+ "getrandom 0.3.4",
  "once_cell",
  "rustix",
  "windows-sys",
diff --git a/Cargo.toml b/Cargo.toml
index 98df0527..d17286dd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,7 +15,7 @@ exclude = ["marvin_toolkit/", "thirdparty/"]
 
 [dependencies]
 const-oid = { version = "0.10", default-features = false }
-crypto-bigint = { version = "0.7", default-features = false, features = ["zeroize", "alloc"] }
+crypto-bigint = { version = "0.7.5", default-features = false, features = ["zeroize", "alloc"] }
 crypto-primes = { version = "0.7", default-features = false }
 digest = { version = "0.11", default-features = false, features = ["alloc", "oid"] }
 rand_core = { version = "0.10", default-features = false }
@@ -68,3 +68,7 @@ opt-level = 2
 
 [profile.bench]
 debug = true
+
+[patch.crates-io]
+# https://github.com/RustCrypto/crypto-bigint/pull/1338
+crypto-bigint = { git = "https://github.com/baloo/crypto-bigint.git", branch = "baloo/push-qmwlxxnxqywl" }
diff --git a/src/key.rs b/src/key.rs
index b5d7e258..b9778282 100644
--- a/src/key.rs
+++ b/src/key.rs
@@ -144,9 +144,9 @@ impl Zeroize for PrecomputedValues {
     fn zeroize(&mut self) {
         self.dp.zeroize();
         self.dq.zeroize();
-        // TODO: once these have landed in crypto-bigint
-        // self.p_params.zeroize();
-        // self.q_params.zeroize();
+        self.qinv.zeroize();
+        self.p_params.zeroize();
+        self.q_params.zeroize();
     }
 }