diff --git a/Cargo.lock b/Cargo.lock
index 250bac5..93dea89 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -189,7 +189,7 @@ dependencies = [
  "console_log 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "criterion 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "dodrio-js-api 0.2.0",
- "futures 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "fxhash 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "js-sys 0.3.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -326,50 +326,50 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "futures"
-version = "0.3.5"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "futures-channel 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-core 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-executor 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-io 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-sink 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-task 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-util 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-channel 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-core 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-executor 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-io 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-sink 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-task 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-util 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "futures-channel"
-version = "0.3.5"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "futures-core 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-sink 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-core 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-sink 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "futures-core"
-version = "0.3.5"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "futures-executor"
-version = "0.3.5"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "futures-core 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-task 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-util 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-core 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-task 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-util 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "futures-io"
-version = "0.3.5"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "futures-macro"
-version = "0.3.5"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro-hack 0.5.11 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -380,12 +380,12 @@ dependencies = [
 
 [[package]]
 name = "futures-sink"
-version = "0.3.5"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "futures-task"
-version = "0.3.5"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "once_cell 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -393,17 +393,17 @@ dependencies = [
 
 [[package]]
 name = "futures-util"
-version = "0.3.5"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "futures-channel 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-core 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-io 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-macro 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-sink 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-task 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-channel 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-core 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-io 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-macro 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-sink 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-task 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "pin-project 0.4.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pin-project 0.4.26 (registry+https://github.com/rust-lang/crates.io-index)",
  "pin-utils 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "proc-macro-hack 0.5.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "proc-macro-nested 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -537,15 +537,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "pin-project"
-version = "0.4.16"
+version = "0.4.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "pin-project-internal 0.4.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pin-project-internal 0.4.26 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "pin-project-internal"
-version = "0.4.16"
+version = "0.4.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro2 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -957,15 +957,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum csv 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "37519ccdfd73a75821cac9319d4fce15a81b9fcf75f951df5b9988aa3a0af87d"
 "checksum csv-core 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "9b5cadb6b25c77aeff80ba701712494213f4a8418fcda2ee11b6560c3ad0bf4c"
 "checksum either 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "bb1f6b1ce1c140482ea30ddd3335fc0024ac7ee112895426e0a629a6c20adfe3"
-"checksum futures 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "1e05b85ec287aac0dc34db7d4a569323df697f9c55b99b15d6b4ef8cde49f613"
-"checksum futures-channel 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "f366ad74c28cca6ba456d95e6422883cfb4b252a83bed929c83abfdbbf2967d5"
-"checksum futures-core 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "59f5fff90fd5d971f936ad674802482ba441b6f09ba5e15fd8b39145582ca399"
-"checksum futures-executor 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "10d6bb888be1153d3abeb9006b11b02cf5e9b209fda28693c31ae1e4e012e314"
-"checksum futures-io 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "de27142b013a8e869c14957e6d2edeef89e97c289e69d042ee3a49acd8b51789"
-"checksum futures-macro 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "d0b5a30a4328ab5473878237c447333c093297bded83a4983d10f4deea240d39"
-"checksum futures-sink 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "3f2032893cb734c7a05d85ce0cc8b8c4075278e93b24b66f9de99d6eb0fa8acc"
-"checksum futures-task 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "bdb66b5f09e22019b1ab0830f7785bcea8e7a42148683f99214f73f8ec21a626"
-"checksum futures-util 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "8764574ff08b701a084482c3c7031349104b07ac897393010494beaa18ce32c6"
+"checksum futures 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "5d8e3078b7b2a8a671cb7a3d17b4760e4181ea243227776ba83fd043b4ca034e"
+"checksum futures-channel 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "a7a4d35f7401e948629c9c3d6638fb9bf94e0b2121e96c3b428cc4e631f3eb74"
+"checksum futures-core 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "d674eaa0056896d5ada519900dbf97ead2e46a7b6621e8160d79e2f2e1e2784b"
+"checksum futures-executor 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "cc709ca1da6f66143b8c9bec8e6260181869893714e9b5a490b169b0414144ab"
+"checksum futures-io 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "5fc94b64bb39543b4e432f1790b6bf18e3ee3b74653c5449f63310e9a74b123c"
+"checksum futures-macro 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "f57ed14da4603b2554682e9f2ff3c65d7567b53188db96cb71538217fc64581b"
+"checksum futures-sink 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "0d8764258ed64ebc5d9ed185cf86a95db5cac810269c5d20ececb32e0088abbd"
+"checksum futures-task 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "4dd26820a9f3637f1302da8bceba3ff33adbe53464b54ca24d4e2d4f1db30f94"
+"checksum futures-util 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "8a894a0acddba51a2d49a6f4263b1e64b8c579ece8af50fa86503d52cd1eea34"
 "checksum fxhash 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c31b6d751ae2c7f11320402d34e41349dd1016f8d5d45e48c4312bc8625af50c"
 "checksum half 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d36fab90f82edc3c747f9d438e06cf0a491055896f2a279638bb5beed6c40177"
 "checksum heck 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "20564e78d53d2bb135c343b3f47714a56af2061f1c928fdb541dc7b9fdd94205"
@@ -984,8 +984,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum num_cpus 1.11.1 (registry+https://github.com/rust-lang/crates.io-index)" = "76dac5ed2a876980778b8b85f75a71b6cbf0db0b1232ee12f826bccb00d09d72"
 "checksum once_cell 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b1c601810575c99596d4afc46f78a678c80105117c379eb3650cf99b8a21ce5b"
 "checksum oorandom 11.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ebcec7c9c2a95cacc7cd0ecb89d8a8454eca13906f6deb55258ffff0adeb9405"
-"checksum pin-project 0.4.16 (registry+https://github.com/rust-lang/crates.io-index)" = "81d480cb4e89522ccda96d0eed9af94180b7a5f93fb28f66e1fd7d68431663d1"
-"checksum pin-project-internal 0.4.16 (registry+https://github.com/rust-lang/crates.io-index)" = "a82996f11efccb19b685b14b5df818de31c1edcee3daa256ab5775dd98e72feb"
+"checksum pin-project 0.4.26 (registry+https://github.com/rust-lang/crates.io-index)" = "13fbdfd6bdee3dc9be46452f86af4a4072975899cf8592466668620bebfbcc17"
+"checksum pin-project-internal 0.4.26 (registry+https://github.com/rust-lang/crates.io-index)" = "c82fb1329f632c3552cf352d14427d57a511b1cf41db93b3a7d77906a82dcc8e"
 "checksum pin-utils 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 "checksum plotters 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)" = "4e3bb8da247d27ae212529352020f3e5ee16e83c0c258061d27b08ab92675eeb"
 "checksum proc-macro-hack 0.5.11 (registry+https://github.com/rust-lang/crates.io-index)" = "ecd45702f76d6d3c75a80564378ae228a85f0b59d2f3ed43c91b4a69eb2ebfc5"
diff --git a/Cargo.toml b/Cargo.toml
index aa3e43b..cc472e5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -66,7 +66,7 @@ features = [
 [dev-dependencies]
 console_log = "0.2.0"
 dodrio-js-api = { version = "=0.2.0", path = "./crates/js-api" }
-futures = "0.3.5"
+futures = "0.3.6"
 log = "0.4.11"
 wasm-bindgen-test = "0.3.5"