diff --git a/Cargo.lock b/Cargo.lock
index ca279d4bd..adbd6a7e0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,9 +2,14 @@
 # It is not intended for manual editing.
 [[package]]
 name = "ahash"
-version = "0.3.8"
+version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e8fd72866655d1904d6b0997d0b07ba561047d070fbe29de039031c641b61217"
+checksum = "7f200cbb1e856866d9eade941cf3aa0c5d7dd36f74311c4273b494f4ef036957"
+dependencies = [
+ "getrandom 0.2.2",
+ "once_cell",
+ "version_check",
+]
 
 [[package]]
 name = "autocfg"
@@ -24,6 +29,12 @@ version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
 [[package]]
 name = "cloudabi"
 version = "0.1.0"
@@ -55,9 +66,20 @@ version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7abc8dd8451921606d809ba32e95b6111925cd2906060d2dcc29c070220503eb"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "libc",
- "wasi",
+ "wasi 0.9.0+wasi-snapshot-preview1",
+]
+
+[[package]]
+name = "getrandom"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c9495705279e7140bf035dde1f6e750c162df8b625267cd52cc44e0b156732c8"
+dependencies = [
+ "cfg-if 1.0.0",
+ "libc",
+ "wasi 0.10.2+wasi-snapshot-preview1",
 ]
 
 [[package]]
@@ -77,10 +99,18 @@ version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e91b62f79061a0bc2e046024cb7ba44b08419ed238ecbd9adbd787434b9e8c25"
 dependencies = [
- "ahash",
  "autocfg",
 ]
 
+[[package]]
+name = "hashbrown"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "362385356d610bd1e5a408ddf8d022041774b683f345a1d2cfcb4f60f8ae2db5"
+dependencies = [
+ "ahash",
+]
+
 [[package]]
 name = "indexmap"
 version = "1.5.0"
@@ -88,7 +118,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5b88cd59ee5f71fea89a62248fc8f387d44400cefe05ef548466d61ced9029a7"
 dependencies = [
  "autocfg",
- "hashbrown",
+ "hashbrown 0.8.2",
 ]
 
 [[package]]
@@ -214,7 +244,7 @@ version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1afa393812b0e4c33d8a46054028ce39d79f954dfa98298f25691abf00b24e39"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "libc",
  "ndarray",
  "num-complex",
@@ -222,6 +252,12 @@ dependencies = [
  "pyo3",
 ]
 
+[[package]]
+name = "once_cell"
+version = "1.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "af8b08b04175473088b46763e51ee54da5f9a164bc162f615b91bc179dbf15a3"
+
 [[package]]
 name = "parking_lot"
 version = "0.11.0"
@@ -239,7 +275,7 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c361aa727dd08437f2f1447be8b59a33b0edd15e0fcee698f935613d9efbca9b"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "cloudabi",
  "instant",
  "libc",
@@ -351,7 +387,7 @@ version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6a6b1679d49b24bbfe0c803429aa1874472f50d9b363131f0e89fc356b544d03"
 dependencies = [
- "getrandom",
+ "getrandom 0.1.14",
  "libc",
  "rand_chacha",
  "rand_core",
@@ -374,7 +410,7 @@ version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "90bde5296fc891b0cef12a6d03ddccc162ce7b2aff54160af9338f8d40df6d19"
 dependencies = [
- "getrandom",
+ "getrandom 0.1.14",
 ]
 
 [[package]]
@@ -412,7 +448,7 @@ name = "retworkx"
 version = "0.4.0"
 dependencies = [
  "fixedbitset",
- "hashbrown",
+ "hashbrown 0.11.0",
  "ndarray",
  "numpy",
  "petgraph",
@@ -456,12 +492,24 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "af41d708427f8fd0e915dcebb2cae0f0e6acb2a939b2d399c265c39a38a18942"
 
+[[package]]
+name = "version_check"
+version = "0.9.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
+
 [[package]]
 name = "wasi"
 version = "0.9.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
 
+[[package]]
+name = "wasi"
+version = "0.10.2+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
diff --git a/Cargo.toml b/Cargo.toml
index a9d58745c..947f23944 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,7 +18,7 @@ crate-type = ["cdylib"]
 [dependencies]
 petgraph = "0.5.1"
 fixedbitset = "0.2.0"
-hashbrown = "0.8"
+hashbrown = "0.11"
 numpy = "0.11.0"
 ndarray = "0.13.0"
 rand = "0.7"