diff --git a/Cargo.lock b/Cargo.lock
index cceedc2..6980c82 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,5 +1,16 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+[[package]]
+name = "async-channel"
+version = "1.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2114d64672151c0c5eaa5e131ec84a74f06e1e559830dabba01ca30605d66319"
+dependencies = [
+ "concurrent-queue",
+ "event-listener",
+ "futures-core",
+]
+
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -29,6 +40,12 @@ version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0e4cec68f03f32e44924783795810fa50a7035d8c8ebe78580ad7e6c703fba38"
 
+[[package]]
+name = "cache-padded"
+version = "1.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "631ae5198c9be5e753e5cc215e1bd73c2b466a3565173db433f52bb9d3e66dba"
+
 [[package]]
 name = "candor_start"
 version = "0.1.0"
@@ -89,6 +106,15 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "concurrent-queue"
+version = "1.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "30ed07550be01594c6026cff2a1d7fe9c8f683caa798e12b68694ac9e88286a3"
+dependencies = [
+ "cache-padded",
+]
+
 [[package]]
 name = "crossbeam-utils"
 version = "0.8.3"
@@ -102,9 +128,9 @@ dependencies = [
 
 [[package]]
 name = "curl"
-version = "0.4.34"
+version = "0.4.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e268162af1a5fe89917ae25ba3b0a77c8da752bdc58e7dbb4f15b91fbd33756e"
+checksum = "adba2012502267c1fdde381e0e3acc44bf8be96b2f7d455089dcc2c8ad2f67bd"
 dependencies = [
  "curl-sys",
  "libc",
@@ -117,9 +143,9 @@ dependencies = [
 
 [[package]]
 name = "curl-sys"
-version = "0.4.38+curl-7.73.0"
+version = "0.4.43+curl-7.76.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "498ecfb4f59997fd40023d62a9f1e506e768b2baeb59a1d311eb9751cdcd7e3f"
+checksum = "a802c7a9828b7d139efaed1bc92471ab6681ed86d19a105605f5eadcb0837d11"
 dependencies = [
  "cc",
  "libc",
@@ -140,6 +166,12 @@ dependencies = [
  "cfg-if 0.1.10",
 ]
 
+[[package]]
+name = "event-listener"
+version = "2.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7531096570974c3a9dcf9e4b8e1cede1ec26cf5046219fb3b9d897503b9be59"
+
 [[package]]
 name = "fastrand"
 version = "1.4.0"
@@ -149,18 +181,6 @@ dependencies = [
  "instant",
 ]
 
-[[package]]
-name = "flume"
-version = "0.10.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "531a685ab99b8f60a271b44d5dd1a76e55124a8c9fa0407b7a8e9cd172d5b588"
-dependencies = [
- "futures-core",
- "futures-sink",
- "pin-project 1.0.1",
- "spinning_top",
-]
-
 [[package]]
 name = "fnv"
 version = "1.0.7"
@@ -213,12 +233,6 @@ dependencies = [
  "waker-fn",
 ]
 
-[[package]]
-name = "futures-sink"
-version = "0.3.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "85754d98985841b7d4f5e8e6fbfa4a4ac847916893ec511a2917ccd8525b8bb3"
-
 [[package]]
 name = "hashbrown"
 version = "0.9.0"
@@ -286,20 +300,22 @@ dependencies = [
 
 [[package]]
 name = "isahc"
-version = "1.1.0"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af3d0a62435883f745c825ec06a03a38d24bf5fa65c43e2c083b6a60ce0058ae"
+checksum = "81c01404730bb4574bbacb59ca0855f969f8eabd688ca22866f2cc333f1a4f69"
 dependencies = [
+ "async-channel",
  "crossbeam-utils",
  "curl",
  "curl-sys",
  "encoding_rs",
- "flume",
+ "event-listener",
  "futures-lite",
  "http",
  "log",
  "mime",
  "once_cell",
+ "polling",
  "slab",
  "sluice",
  "tracing",
@@ -322,9 +338,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.77"
+version = "0.2.94"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f2f96b10ec2560088a8e76961b00d47107b3a625fecb76dedb29ee7ccbf98235"
+checksum = "18794a8ad5b29321f790b55d93dfba91e125cb1a9edbd4f8e3150acc771c1a5e"
 
 [[package]]
 name = "libnghttp2-sys"
@@ -348,15 +364,6 @@ dependencies = [
  "vcpkg",
 ]
 
-[[package]]
-name = "lock_api"
-version = "0.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd96ffd135b2fd7b973ac026d28085defbe8983df057ced3eb4f2130b0831312"
-dependencies = [
- "scopeguard",
-]
-
 [[package]]
 name = "log"
 version = "0.4.11"
@@ -433,16 +440,7 @@ version = "0.4.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2ffbc8e94b38ea3d2d8ba92aea2983b503cd75d0888d75b86bb37970b5698e15"
 dependencies = [
- "pin-project-internal 0.4.27",
-]
-
-[[package]]
-name = "pin-project"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee41d838744f60d959d7074e3afb6b35c7456d0f61cad38a24e35e6553f73841"
-dependencies = [
- "pin-project-internal 1.0.1",
+ "pin-project-internal",
 ]
 
 [[package]]
@@ -456,17 +454,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "pin-project-internal"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "81a4ffa594b66bff340084d4081df649a7dc049ac8d7fc458d8e628bfbbb2f86"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "pin-project-lite"
 version = "0.1.11"
@@ -485,6 +472,19 @@ version = "0.3.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3831453b3449ceb48b6d9c7ad7c96d5ea673e9b470a1dc578c2ce6521230884c"
 
+[[package]]
+name = "polling"
+version = "2.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4fc12d774e799ee9ebae13f4076ca003b40d18a11ac0f3641e6f899618580b7b"
+dependencies = [
+ "cfg-if 1.0.0",
+ "libc",
+ "log",
+ "wepoll-sys",
+ "winapi",
+]
+
 [[package]]
 name = "proc-macro-error"
 version = "1.0.4"
@@ -527,12 +527,6 @@ dependencies = [
  "proc-macro2",
 ]
 
-[[package]]
-name = "redox_syscall"
-version = "0.1.57"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"
-
 [[package]]
 name = "ryu"
 version = "1.0.5"
@@ -549,12 +543,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "scopeguard"
-version = "1.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
-
 [[package]]
 name = "serde"
 version = "1.0.124"
@@ -605,25 +593,14 @@ dependencies = [
 
 [[package]]
 name = "socket2"
-version = "0.3.15"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1fa70dc5c8104ec096f4fe7ede7a221d35ae13dcd19ba1ad9a81d2cab9a1c44"
+checksum = "9e3dfc207c526015c632472a77be09cf1b6e46866581aecae5cc38fb4235dea2"
 dependencies = [
- "cfg-if 0.1.10",
  "libc",
- "redox_syscall",
  "winapi",
 ]
 
-[[package]]
-name = "spinning_top"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7e529d73e80d64b5f2631f9035113347c578a1c9c7774b83a2b880788459ab36"
-dependencies = [
- "lock_api",
-]
-
 [[package]]
 name = "strsim"
 version = "0.10.0"
@@ -713,7 +690,7 @@ version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ab7bb6f14721aa00656086e9335d363c5c8747bae02ebe32ea2c7dece5689b4c"
 dependencies = [
- "pin-project 0.4.27",
+ "pin-project",
  "tracing",
 ]
 
@@ -789,6 +766,15 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9d5b2c62b4012a3e1eca5a7e077d13b3bf498c4073e33ccd58626607748ceeca"
 
+[[package]]
+name = "wepoll-sys"
+version = "3.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fcb14dea929042224824779fbc82d9fab8d2e6d3cbc0ac404de8edf489e77ff"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
diff --git a/Cargo.toml b/Cargo.toml
index 8bf94d3..d317395 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,6 +8,6 @@ edition = "2018"
 
 [dependencies]
 clap = "3.0.0-beta.2"
-isahc = "1.1.0"
+isahc = "1.4.0"
 serde = { version = "1.0.124", features = ["derive"] }
 serde_json = "1.0.64"
\ No newline at end of file