diff --git a/Cargo.lock b/Cargo.lock
index a74cdc88..4a2ac816 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -727,9 +727,9 @@ dependencies = [
 
 [[package]]
 name = "num"
-version = "0.4.1"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b05180d69e3da0e530ba2a1dae5110317e49e3b7f3d41be227dc5f92e49ee7af"
+checksum = "35bd024e8b2ff75562e5f34e7f4905839deb4b22955ef5e73d2fea1b9813cb23"
 dependencies = [
  "num-bigint",
  "num-complex",
@@ -752,9 +752,9 @@ dependencies = [
 
 [[package]]
 name = "num-complex"
-version = "0.4.3"
+version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02e0d21255c828d6f128a1e41534206671e8c3ea0c62f32291e808dc82cff17d"
+checksum = "73f88a1307638156682bada9d7604135552957b7818057dcef22705b4d509495"
 dependencies = [
  "num-traits",
 ]
@@ -770,9 +770,9 @@ dependencies = [
 
 [[package]]
 name = "num-iter"
-version = "0.1.43"
+version = "0.1.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7d03e6c028c5dc5cac6e2dec0efda81fc887605bb3d884578bb6d6bf7514e252"
+checksum = "1429034a0490724d0075ebb2bc9e875d6503c3cf69e235a8941aa757d83ef5bf"
 dependencies = [
  "autocfg",
  "num-integer",
@@ -781,11 +781,10 @@ dependencies = [
 
 [[package]]
 name = "num-rational"
-version = "0.4.1"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0638a1c9d0a3c0914158145bc76cff373a75a627e6ecbfb71cbe6f453a5a19b0"
+checksum = "f83d14da390562dca69fc84082e73e548e1ad308d24accdedd2720017cb37824"
 dependencies = [
- "autocfg",
  "num-bigint",
  "num-integer",
  "num-traits",
diff --git a/Cargo.toml b/Cargo.toml
index 3a391fab..f2656d3d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -25,7 +25,7 @@ lazy_static = "1.4.0"
 unicode-segmentation = "1.8.0"
 derivative = "2.2.0"
 encoding8 = "0.3.2"
-num = "0.4.0"
+num = "0.4.3"
 indoc = "1.0"
 do-notation = "0.1.3"
 serde_json = "1.0"