diff --git a/.github/workflows/no_std_build.yml b/.github/workflows/no_std_build.yml
index 2179ae12..d15afdd0 100644
--- a/.github/workflows/no_std_build.yml
+++ b/.github/workflows/no_std_build.yml
@@ -26,4 +26,4 @@ jobs:
     - name: Build MLS Embedded Full RFC Compliance
       run: cargo +nightly build --package mls-rs --lib --no-default-features --features rfc_compliant --target thumbv6m-none-eabi
     - name: Build rust crypto embedded
-      run: cargo +nightly build --package mls-rs-crypto-rustcrypto --no-default-features --target thumbv6m-none-eabi
+      run: cargo +nightly build --package mls-rs-crypto-rustcrypto --no-default-features --features "getrandom/custom" --target thumbv6m-none-eabi
diff --git a/mls-rs-crypto-rustcrypto/Cargo.toml b/mls-rs-crypto-rustcrypto/Cargo.toml
index fcec415e..01b39880 100644
--- a/mls-rs-crypto-rustcrypto/Cargo.toml
+++ b/mls-rs-crypto-rustcrypto/Cargo.toml
@@ -37,7 +37,7 @@ thiserror = { version = "1.0.40", optional = true }
 zeroize = { version = "1", default-features = false, features = ["alloc", "zeroize_derive"] }
 
 # Random
-getrandom = { version = "0.2", default-features = false, features = ["custom"] }
+getrandom = { version = "0.2", default-features = false, optional = true }
 rand_core = { version = "0.6", default-features = false, features = ["alloc"] }
 
 # AEAD