diff --git a/zcash_client_backend/Cargo.toml b/zcash_client_backend/Cargo.toml
index 01e694979..8f8a126df 100644
--- a/zcash_client_backend/Cargo.toml
+++ b/zcash_client_backend/Cargo.toml
@@ -83,7 +83,7 @@ jubjub = "0.10"
 proptest = "1.0.0"
 rand_core = "0.6"
 rand_xorshift = "0.3"
-tempfile = "3.1.0"
+tempfile = "3.5.0"
 zcash_proofs = { version = "0.10", path = "../zcash_proofs", default-features = false }
 zcash_address = { version = "0.2", path = "../components/zcash_address", features = ["test-dependencies"] }
 
diff --git a/zcash_client_sqlite/Cargo.toml b/zcash_client_sqlite/Cargo.toml
index 6c2024ca2..b10df9847 100644
--- a/zcash_client_sqlite/Cargo.toml
+++ b/zcash_client_sqlite/Cargo.toml
@@ -49,7 +49,7 @@ assert_matches = "1.5"
 proptest = "1.0.0"
 rand_core = "0.6"
 regex = "1.4"
-tempfile = "3"
+tempfile = "3.5.0"
 zcash_note_encryption = "0.3"
 zcash_proofs = { version = "0.10", path = "../zcash_proofs" }
 zcash_primitives = { version = "0.10", path = "../zcash_primitives", features = ["test-dependencies"] }