diff --git a/Cargo.toml b/Cargo.toml
index 6fc947fe..7cba8670 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -26,28 +26,22 @@ blake2b_simd = "0.5"
 ff = "0.10"
 fpe = "0.4"
 group = "0.10"
+halo2 = "0.0"
 lazy_static = "1"
 pasta_curves = "0.1"
 proptest = { version = "1.0.0", optional = true }
 rand = "0.8"
 nonempty = "0.6"
 subtle = "2.3"
+zcash_note_encryption = "0.0"
 
 # Developer tooling dependencies
 plotters = { version = "0.3.0", optional = true }
 
-[dependencies.halo2]
-git = "https://github.com/zcash/halo2.git"
-rev = "d04b532368d05b505e622f8cac4c0693574fbd93"
-
 [dependencies.reddsa]
 git = "https://github.com/str4d/redjubjub.git"
 rev = "d5d8c5f3bb704bad8ae88fe4a29ae1f744774cb2"
 
-[dependencies.zcash_note_encryption]
-git = "https://github.com/zcash/librustzcash.git"
-rev = "cc533a9da4f6a7209a7be05f82b12a03969152c9"
-
 [dev-dependencies]
 criterion = "0.3"
 hex = "0.4"
@@ -63,3 +57,7 @@ test-dependencies = ["proptest"]
 [[bench]]
 name = "small"
 harness = false
+
+[patch.crates-io]
+halo2 = { git = "https://github.com/zcash/halo2.git", rev = "d04b532368d05b505e622f8cac4c0693574fbd93" }
+zcash_note_encryption = { git = "https://github.com/zcash/librustzcash.git", rev = "cc533a9da4f6a7209a7be05f82b12a03969152c9" }