diff --git a/Cargo.lock b/Cargo.lock
index a99057e5..cd8c442d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -434,6 +434,7 @@ dependencies = [
  "page_size 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "prometheus 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rocksdb 0.12.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "rocksdb 0.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.104 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1183,6 +1184,15 @@ dependencies = [
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "rocksdb"
+version = "0.12.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.68 (registry+https://github.com/rust-lang/crates.io-index)",
+ "librocksdb-sys 6.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "rocksdb"
 version = "0.13.0"
@@ -1869,6 +1879,7 @@ dependencies = [
 "checksum regex 1.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "8900ebc1363efa7ea1c399ccc32daed870b4002651e0bed86e72d501ebbe0048"
 "checksum regex-syntax 0.6.17 (registry+https://github.com/rust-lang/crates.io-index)" = "7fe5bd57d1d7414c6b5ed48563a2c855d995ff777729dcd91c369ec7fea395ae"
 "checksum remove_dir_all 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "4a83fa3702a688b9359eccba92d153ac33fd2e8462f9e0e3fdf155239ea7792e"
+"checksum rocksdb 0.12.4 (registry+https://github.com/rust-lang/crates.io-index)" = "d65bee9fe606c76fd90d6cc33b86bdafde0981b8a6b2d190ec1267e0d065baf8"
 "checksum rocksdb 0.13.0 (registry+https://github.com/rust-lang/crates.io-index)" = "12069b106981c6103d3eab7dd1c86751482d0779a520b7c14954c8b586c1e643"
 "checksum rust-argon2 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4ca4eaef519b494d1f2848fc602d18816fed808a981aedf4f1f00ceb7c9d32cf"
 "checksum rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)" = "f76d05d3993fd5f4af9434e8e436db163a12a9d40e1a58a726f27a01dfd12a2a"
diff --git a/Cargo.toml b/Cargo.toml
index a00c8f4a..3bfb15a9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,8 +12,9 @@ readme = "README.md"
 edition = "2018"
 
 [features]
-default = []
+default = [ "rocksdb" ]
 liquid = ["elements", "lazy_static"]
+oldcpu = [ "rocksdb-oldcpu" ]
 
 [dependencies]
 arraydeque = "0.4"
@@ -39,7 +40,8 @@ num_cpus = "1.12.0"
 page_size = "0.4.2"
 prometheus = "0.7"
 rayon = "1.3.0"
-rocksdb = "0.13.0"
+rocksdb = { version = "0.13.0", optional = true }
+rocksdb-oldcpu = { version = "0.12.4", optional = true, package = "rocksdb" }
 rust-crypto = "0.2"
 serde = "1.0.104"
 serde_derive = "1.0.104"
diff --git a/src/lib.rs b/src/lib.rs
index c758ed94..83eacb82 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -17,7 +17,6 @@ extern crate num_cpus;
 extern crate page_size;
 extern crate prometheus;
 extern crate rayon;
-extern crate rocksdb;
 extern crate serde;
 extern crate stderrlog;
 extern crate sysconf;
@@ -25,6 +24,12 @@ extern crate time;
 extern crate tiny_http;
 extern crate url;
 
+// See https://github.com/romanz/electrs/issues/193 & https://github.com/rust-rocksdb/rust-rocksdb/issues/327
+#[cfg(not(feature = "oldcpu"))]
+extern crate rocksdb;
+#[cfg(feature = "oldcpu")]
+extern crate rocksdb_oldcpu as rocksdb;
+
 #[macro_use]
 extern crate chan;
 #[macro_use]