diff --git a/Cargo.lock b/Cargo.lock
index d885b52242..c14378e045 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "Inflector"
@@ -921,9 +921,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bee0328b1209d157ef001c94dd85b4f8f64139adb0eac2659f4b08382b2f474d"
 dependencies = [
  "cfg-if 1.0.0",
- "js-sys",
- "wasm-bindgen",
- "web-sys",
 ]
 
 [[package]]
@@ -1898,7 +1895,6 @@ dependencies = [
  "getrandom",
  "half",
  "hex",
- "hexf-parse",
  "indexmap",
  "is-macro",
  "itertools",
@@ -1925,7 +1921,6 @@ dependencies = [
  "paste",
  "puruspe",
  "rand",
- "rand_core",
  "result-like",
  "rustc_version",
  "rustpython-ast",
@@ -1946,7 +1941,6 @@ dependencies = [
  "socket2",
  "sre-engine",
  "static_assertions",
- "strum",
  "strum_macros",
  "system-configuration",
  "termios",
@@ -1976,11 +1970,8 @@ version = "0.1.2"
 dependencies = [
  "console_error_panic_hook",
  "js-sys",
- "parking_lot",
- "rustpython-common",
  "rustpython-parser",
  "rustpython-vm",
- "serde",
  "serde-wasm-bindgen",
  "wasm-bindgen",
  "wasm-bindgen-futures",
@@ -2231,12 +2222,6 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
 
-[[package]]
-name = "strum"
-version = "0.21.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aaf86bbcfd1fa9670b7a129f64fc0c9fcbbfe4f1bc4210e9e98fe71ffc12cde2"
-
 [[package]]
 name = "strum_macros"
 version = "0.21.1"
diff --git a/Cargo.toml b/Cargo.toml
index 1a559f7be3..6ce04ec8ee 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,7 +30,6 @@ ssl-vendor = ["rustpython-vm/ssl-vendor"]
 log = "0.4"
 env_logger = { version = "0.8", default-features = false, features = ["atty", "termcolor"] }
 clap = "2.33"
-rustpython-compiler = { path = "compiler/porcelain", version = "0.1.1" }
 rustpython-parser = { path = "parser", version = "0.1.1" }
 rustpython-vm = { path = "vm", version = "0.1.1", default-features = false, features = ["compile-parse"] }
 pylib = { package = "rustpython-pylib", path = "vm/pylib-crate", version = "0.1.0", optional = true }
@@ -49,6 +48,7 @@ rustyline = "8.1"
 cpython = "0.6"
 python3-sys = "0.6"
 criterion = "0.3"
+rustpython-compiler = { path = "compiler/porcelain", version = "0.1.1" }
 
 [[bench]]
 name = "execution"
diff --git a/vm/Cargo.toml b/vm/Cargo.toml
index a452bcdbbb..98eabbc0d3 100644
--- a/vm/Cargo.toml
+++ b/vm/Cargo.toml
@@ -42,7 +42,6 @@ num-traits = "0.2.8"
 num-integer = "0.1.41"
 num-rational = "0.4.0"
 rand = "0.8"
-rand_core = "0.6"
 getrandom = { version = "0.2", features = ["js"] }
 log = "0.4"
 rustpython-derive = { path = "../derive", version = "0.1.2" }
@@ -60,7 +59,6 @@ chrono = { version = "0.4", features = ["wasmbind"] }
 lexical-core = "0.7"
 itertools = "0.10.0"
 hex = "0.4.0"
-hexf-parse = "0.1.0"
 indexmap = "1.0.2"
 ahash = "0.7.2"
 crc = "^1.0.0"
@@ -117,7 +115,6 @@ rustpython-common = { path = "../common" }
 [target.'cfg(unix)'.dependencies]
 exitcode = "1.1.2"
 uname = "0.1.1"
-strum = "0.21"
 strum_macros = "0.21"
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
diff --git a/wasm/lib/Cargo.toml b/wasm/lib/Cargo.toml
index 2b618619ab..4e19b8320f 100644
--- a/wasm/lib/Cargo.toml
+++ b/wasm/lib/Cargo.toml
@@ -17,17 +17,13 @@ no-start-func = []
 
 [dependencies]
 rustpython-parser = { path = "../../parser" }
-rustpython-common = { path = "../../common" }
 # no threading feature for rustpython-vm -- doesn't much matter anyway, but it might be more optimized
 rustpython-vm = { path = "../../vm", default-features = false, features = ["compile-parse"]  }
 wasm-bindgen = "0.2"
 wasm-bindgen-futures = "0.4"
 serde-wasm-bindgen = "0.1"
-serde = "1.0"
 js-sys = "0.3"
 console_error_panic_hook = "0.1"
-# make parking_lot use wasm-bingden for instant
-parking_lot = { version = "0.11", features = ["wasm-bindgen"] }
 
 [dependencies.web-sys]
 version = "0.3"