diff --git a/Cargo.lock b/Cargo.lock
index fd89ca705..59d764a9e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -214,15 +214,6 @@ version = "0.22.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
 
-[[package]]
-name = "bincode"
-version = "1.3.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1f45e9417d87227c7a56d22e471c6206462cba514c7590c09aff4cf6d1ddcad"
-dependencies = [
- "serde",
-]
-
 [[package]]
 name = "bit-set"
 version = "0.8.0"
@@ -756,7 +747,6 @@ dependencies = [
  "bytemuck",
  "bytes",
  "cfg-if",
- "heed",
  "page_size",
  "paste",
  "redb",
@@ -1330,15 +1320,6 @@ dependencies = [
  "syn 2.0.101",
 ]
 
-[[package]]
-name = "doxygen-rs"
-version = "0.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "415b6ec780d34dcf624666747194393603d0373b7141eef01d12ee58881507d9"
-dependencies = [
- "phf",
-]
-
 [[package]]
 name = "either"
 version = "1.15.0"
@@ -1604,44 +1585,6 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
-[[package]]
-name = "heed"
-version = "0.20.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7d4f449bab7320c56003d37732a917e18798e2f1709d80263face2b4f9436ddb"
-dependencies = [
- "bitflags 2.9.0",
- "byteorder",
- "heed-traits",
- "heed-types",
- "libc",
- "lmdb-master-sys",
- "once_cell",
- "page_size",
- "serde",
- "synchronoise",
- "url",
-]
-
-[[package]]
-name = "heed-traits"
-version = "0.20.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb3130048d404c57ce5a1ac61a903696e8fcde7e8c2991e9fcfc1f27c3ef74ff"
-
-[[package]]
-name = "heed-types"
-version = "0.20.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d3f528b053a6d700b2734eabcd0fd49cb8230647aa72958467527b0b7917114"
-dependencies = [
- "bincode",
- "byteorder",
- "heed-traits",
- "serde",
- "serde_json",
-]
-
 [[package]]
 name = "hex"
 version = "0.4.3"
@@ -2015,17 +1958,6 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "241eaef5fd12c88705a01fc1066c48c4b36e0dd4377dcdc7ec3942cea7a69956"
 
-[[package]]
-name = "lmdb-master-sys"
-version = "0.2.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "864808e0b19fb6dd3b70ba94ee671b82fce17554cf80aeb0a155c65bb08027df"
-dependencies = [
- "cc",
- "doxygen-rs",
- "libc",
-]
-
 [[package]]
 name = "lock_api"
 version = "0.4.12"
@@ -2363,48 +2295,6 @@ version = "2.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e3148f5046208a5d56bcfc03053e3ca6334e51da8dfb19b6cdc8b306fae3283e"
 
-[[package]]
-name = "phf"
-version = "0.11.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1fd6780a80ae0c52cc120a26a1a42c1ae51b247a253e4e06113d23d2c2edd078"
-dependencies = [
- "phf_macros",
- "phf_shared",
-]
-
-[[package]]
-name = "phf_generator"
-version = "0.11.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c80231409c20246a13fddb31776fb942c38553c51e871f8cbd687a4cfb5843d"
-dependencies = [
- "phf_shared",
- "rand",
-]
-
-[[package]]
-name = "phf_macros"
-version = "0.11.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f84ac04429c13a7ff43785d75ad27569f2951ce0ffd30a3321230db2fc727216"
-dependencies = [
- "phf_generator",
- "phf_shared",
- "proc-macro2",
- "quote",
- "syn 2.0.101",
-]
-
-[[package]]
-name = "phf_shared"
-version = "0.11.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "67eabc2ef2a60eb7faa00097bd1ffdb5bd28e62bf39990626a582201b7a754e5"
-dependencies = [
- "siphasher",
-]
-
 [[package]]
 name = "pin-project"
 version = "1.1.10"
@@ -2975,12 +2865,6 @@ dependencies = [
  "tower-service 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "siphasher"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "56199f7ddabf13fe5074ce809e7d3f42b42ae711800501b5b16ea82ad029c39d"
-
 [[package]]
 name = "skein"
 version = "0.1.1"
@@ -3105,15 +2989,6 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0bf256ce5efdfa370213c1dabab5935a12e49f2c58d15e9eac2870d3b4f27263"
 
-[[package]]
-name = "synchronoise"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3dbc01390fc626ce8d1cffe3376ded2b72a11bb70e1c75f404a210e4daa4def2"
-dependencies = [
- "crossbeam-queue",
-]
-
 [[package]]
 name = "synstructure"
 version = "0.13.2"
diff --git a/storage/blockchain/Cargo.toml b/storage/blockchain/Cargo.toml
index 34324ebc1..6ab13f412 100644
--- a/storage/blockchain/Cargo.toml
+++ b/storage/blockchain/Cargo.toml
@@ -9,12 +9,12 @@ repository  = "https://github.com/Cuprate/cuprate/tree/main/storage/cuprate-bloc
 keywords    = ["cuprate", "blockchain", "database"]
 
 [features]
-default     = ["heed"]
+default     = []
 # default     = ["redb", "service"]
 # default     = ["redb-memory", "service"]
-heed        = ["cuprate-database/heed"]
-redb        = ["cuprate-database/redb"]
-redb-memory = ["cuprate-database/redb-memory"]
+# heed        = ["cuprate-database/heed"]
+# redb        = ["cuprate-database/redb"]
+# redb-memory = ["cuprate-database/redb-memory"]
 serde       = ["dep:serde", "cuprate-database/serde", "cuprate-database-service/serde", "cuprate-helper/serde"]
 
 [dependencies]
diff --git a/storage/database/Cargo.toml b/storage/database/Cargo.toml
index 28ec07c7c..c29ff331d 100644
--- a/storage/database/Cargo.toml
+++ b/storage/database/Cargo.toml
@@ -9,12 +9,10 @@ repository  = "https://github.com/Cuprate/cuprate/tree/main/storage/database"
 keywords    = ["cuprate", "database"]
 
 [features]
-default     = ["heed"]
+default     = []
 # default     = ["redb"]
 # default     = ["redb-memory"]
-heed        = []
-redb        = ["dep:redb"]
-redb-memory = ["redb"]
+# heed        = []
 
 [dependencies]
 bytemuck  = { version = "1.18.0", features = ["must_cast", "derive", "min_const_generics", "extern_crate_alloc"] }
@@ -26,8 +24,8 @@ thiserror = { workspace = true }
 tracing   = { workspace = true }
 
 # Optional features.
-heed  = { version = "0.20.5", features = ["read-txn-no-tls"] }
-redb  = { version = "2.1.3", optional = true }
+# heed  = { version = "0.20.5", features = ["read-txn-no-tls"] }
+redb  = { version = "2.1.3" }
 serde = { workspace = true, optional = true }
 
 [dev-dependencies]
diff --git a/storage/database/src/backend/mod.rs b/storage/database/src/backend/mod.rs
index ebe12d860..8ea76e901 100644
--- a/storage/database/src/backend/mod.rs
+++ b/storage/database/src/backend/mod.rs
@@ -1,18 +1,7 @@
 //! Database backends.
 
-cfg_if::cfg_if! {
-    // If both backends are enabled, fallback to `heed`.
-    // This is useful when using `--all-features`.
-    if #[cfg(all(feature = "redb", not(feature = "heed")))] {
-        use heed as _;
-
-        mod redb;
-        pub use redb::ConcreteEnv;
-    } else {
-        mod heed;
-        pub use heed::ConcreteEnv;
-    }
-}
+mod redb;
+pub use redb::ConcreteEnv;
 
 #[cfg(test)]
 mod tests;
diff --git a/storage/database/src/constants.rs b/storage/database/src/constants.rs
index 6460d6939..d7f606e47 100644
--- a/storage/database/src/constants.rs
+++ b/storage/database/src/constants.rs
@@ -27,15 +27,7 @@ If this happens frequently, consider using the `Safe` sync mode.";
 /// |---------|-------|
 /// | `heed`  | `"heed"`
 /// | `redb`  | `"redb"`
-pub const DATABASE_BACKEND: &str = {
-    cfg_if! {
-        if #[cfg(all(feature = "redb", not(feature = "heed")))] {
-            "redb"
-        } else {
-            "heed"
-        }
-    }
-};
+pub const DATABASE_BACKEND: &str = "redb";
 
 /// Cuprate's database filename.
 ///
@@ -45,15 +37,7 @@ pub const DATABASE_BACKEND: &str = {
 /// |---------|-------|
 /// | `heed`  | `"data.mdb"`
 /// | `redb`  | `"data.redb"`
-pub const DATABASE_DATA_FILENAME: &str = {
-    cfg_if! {
-        if #[cfg(all(feature = "redb", not(feature = "heed")))] {
-            "data.redb"
-        } else {
-            "data.mdb"
-        }
-    }
-};
+pub const DATABASE_DATA_FILENAME: &str = "data.redb";
 
 /// Cuprate's database lock filename.
 ///
@@ -61,15 +45,7 @@ pub const DATABASE_DATA_FILENAME: &str = {
 /// |---------|-------|
 /// | `heed`  | `Some("lock.mdb")`
 /// | `redb`  | `None` (redb doesn't use a file lock)
-pub const DATABASE_LOCK_FILENAME: Option<&str> = {
-    cfg_if! {
-        if #[cfg(all(feature = "redb", not(feature = "heed")))] {
-            None
-        } else {
-            Some("lock.mdb")
-        }
-    }
-};
+pub const DATABASE_LOCK_FILENAME: Option<&str> = None;
 
 //---------------------------------------------------------------------------------------------------- Tests
 #[cfg(test)]
diff --git a/storage/database/src/lib.rs b/storage/database/src/lib.rs
index 8e48fca0d..478fbaa59 100644
--- a/storage/database/src/lib.rs
+++ b/storage/database/src/lib.rs
@@ -63,13 +63,3 @@ pub(crate) mod tests;
 // Used inside public facing macros.
 #[doc(hidden)]
 pub use paste;
-
-//----------------------------------------------------------------------------------------------------
-// HACK: needed to satisfy the `unused_crate_dependencies` lint.
-cfg_if::cfg_if! {
-    if #[cfg(feature = "redb")]  {
-        use redb as _;
-    } else {
-        use heed as _;
-    }
-}
diff --git a/storage/service/Cargo.toml b/storage/service/Cargo.toml
index 9e35e28f1..36b6a1d9d 100644
--- a/storage/service/Cargo.toml
+++ b/storage/service/Cargo.toml
@@ -9,10 +9,10 @@ repository  = "https://github.com/Cuprate/cuprate/tree/main/storage/service"
 keywords    = ["cuprate", "service", "database"]
 
 [features]
-default     = ["heed"]
-heed        = ["cuprate-database/heed"]
-redb        = ["cuprate-database/redb"]
-redb-memory = ["cuprate-database/redb-memory"]
+default     = []
+# heed        = ["cuprate-database/heed"]
+# redb        = ["cuprate-database/redb"]
+# redb-memory = ["cuprate-database/redb-memory"]
 
 [dependencies]
 cuprate-database = { workspace = true }
diff --git a/storage/txpool/Cargo.toml b/storage/txpool/Cargo.toml
index 63d55578e..03bdeb460 100644
--- a/storage/txpool/Cargo.toml
+++ b/storage/txpool/Cargo.toml
@@ -9,16 +9,16 @@ repository  = "https://github.com/Cuprate/cuprate/tree/main/storage/txpool"
 keywords    = ["cuprate", "txpool", "transaction", "pool", "database"]
 
 [features]
-default     = ["heed"]
+default     = []
 # default   = ["redb", "service"]
 # default   = ["redb-memory", "service"]
-heed        = ["cuprate-database/heed"]
-redb        = ["cuprate-database/redb"]
-redb-memory = ["cuprate-database/redb-memory"]
+# heed        = ["cuprate-database/heed"]
+# redb        = ["cuprate-database/redb"]
+# redb-memory = ["cuprate-database/redb-memory"]
 serde       = ["dep:serde", "cuprate-database/serde", "cuprate-database-service/serde", "cuprate-helper/serde"]
 
 [dependencies]
-cuprate-database         = { workspace = true, features = ["heed"] }
+cuprate-database         = { workspace = true }
 cuprate-database-service = { workspace = true }
 cuprate-types            = { workspace = true, features = ["rpc"] }
 cuprate-helper           = { workspace = true, default-features = false, features = ["constants"] }