diff --git a/Cargo.lock b/Cargo.lock
index b6c86581..ee05a685 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2436,6 +2436,7 @@ dependencies = [
  "blake2",
  "digest 0.10.6",
  "merlin 3.0.0",
+ "sha2 0.10.6",
 ]
 
 [[package]]
diff --git a/crypto/transcript/Cargo.toml b/crypto/transcript/Cargo.toml
index b7a6d9d0..d884ee96 100644
--- a/crypto/transcript/Cargo.toml
+++ b/crypto/transcript/Cargo.toml
@@ -19,6 +19,7 @@ blake2 = { version = "0.10", optional = true }
 merlin = { version = "3", optional = true }
 
 [dev-dependencies]
+sha2 = "0.10"
 blake2 = "0.10"
 
 [features]
diff --git a/crypto/transcript/src/tests.rs b/crypto/transcript/src/tests.rs
index 0a461ba5..4a9f9dfc 100644
--- a/crypto/transcript/src/tests.rs
+++ b/crypto/transcript/src/tests.rs
@@ -85,9 +85,16 @@ where
 
 #[test]
 fn test_digest() {
+  test_transcript::<crate::DigestTranscript<sha2::Sha256>>();
   test_transcript::<crate::DigestTranscript<blake2::Blake2b512>>();
 }
 
+#[cfg(feature = "recommended")]
+#[test]
+fn test_recommended() {
+  test_transcript::<crate::RecommendedTranscript>();
+}
+
 #[cfg(feature = "merlin")]
 #[test]
 fn test_merlin() {