diff --git a/Cargo.toml b/Cargo.toml
index 2b34cb6..ffa5750 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -42,7 +42,7 @@ chrono = { version = "0.4", features = ["serde", "clock"], default-features = fa
 async-trait = "0.1"
 hex = "0.4"
 backoff = { version = "0.4", features = ["tokio"] }
-redb = { version = "1.5", optional = true }
+redb = { version = "2.0", optional = true }
 moka = { version = "0.12", features = ["future"], optional = true } # Caching library
 
 [dev-dependencies]
diff --git a/src/cache/backends/persistent_backend.rs b/src/cache/backends/persistent_backend.rs
index 267d8ac..b538aa5 100644
--- a/src/cache/backends/persistent_backend.rs
+++ b/src/cache/backends/persistent_backend.rs
@@ -287,7 +287,7 @@ impl FirestoreCacheBackend for FirestorePersistentCacheBackend {
                     "Invalidating collection and draining the corresponding table.",
                 );
                 let mut table = write_txn.open_table(td)?;
-                table.drain::<&str>(..)?;
+                table.retain(|_, _| false)?;
             }
             write_txn.commit()?;
         }