diff --git a/.github/workflows/update-crates-versions.yml b/.github/workflows/update-crates-versions.yml
new file mode 100644
index 0000000..21976f0
--- /dev/null
+++ b/.github/workflows/update-crates-versions.yml
@@ -0,0 +1,38 @@
+name: Update crates versions
+
+defaults:
+  run:
+    shell: bash
+
+on:
+  schedule:
+    # Every Sunday at 00:00
+    - cron:  '0 0 * * 0'
+  workflow_dispatch:
+
+jobs:
+  updateversions:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out the code
+        uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579
+        with:
+          fetch-depth: 1
+      - name: Setup rust toolchain
+        uses: actions-rs/toolchain@16499b5e05bf2e26879000db0c1d13f7e13fa3af
+        with:
+          toolchain: stable
+          default: true
+      - name: Retrieve newest versions of dependencies
+        run: ./bin/update-crates-versions.sh
+      - name: Create pull request
+        run: |
+          git config --global user.email "githubbot@exercism.io"
+          git config --global user.name "Exercism Bot"
+          git checkout -b update-crates-versions
+          git add local-registry/Cargo.toml
+          git commit -m "Update crates versions"
+          git push -u origin update-crates-versions
+          gh pr create --title "Update crates versions" --body "This is an automated pull request"
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index 65063eb..94cd694 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -22,7 +22,6 @@ RUN rm src/lib.rs
 COPY src/* src/
 # build the executable
 RUN cargo build --release
-COPY bin/generate-registry.sh ${wd}/bin/
 # download jq
 RUN curl -L -o /usr/local/bin/jq "${JQ_URL}" \
  && chmod +x /usr/local/bin/jq
@@ -34,7 +33,7 @@ RUN curl -L -o clr.tar.gz "${CLR_URL}" \
 # download popular crates to local registry
 WORKDIR /local-registry
 COPY local-registry/* ./
-RUN ${wd}/bin/generate-registry.sh
+RUN cargo generate-lockfile && cargo local-registry --sync Cargo.lock .
 
 # As of Dec 2019, we need to use the nightly toolchain to get JSON test output
 FROM rustlang/rust:nightly AS test
@@ -53,6 +52,4 @@ replace-with = "local-registry"\n\
 local-registry = "/opt/test-runner/local-registry/"\n' >> $CARGO_HOME/config.toml
 # set entrypoint
 COPY bin/run.sh bin
-COPY --from=build /usr/local/cargo/bin/cargo-local-registry /usr/local/cargo/bin/
-COPY bin/generate-registry.sh bin
 ENTRYPOINT ["bin/run.sh"]
diff --git a/bin/generate-registry.sh b/bin/generate-registry.sh
deleted file mode 100755
index 7c496d0..0000000
--- a/bin/generate-registry.sh
+++ /dev/null
@@ -1,23 +0,0 @@
-#!/usr/bin/env bash
-
-export RUSTUP_HOME=/usr/local/rustup
-export CARGO_HOME=/usr/local/cargo
-export PATH=/usr/local/cargo/bin:$PATH
-
-cd /local-registry || cd /opt/test-runner/local-registry
-
-perl -i -p0e 's/(\[dependencies\]\n).*/$1/se' Cargo.toml
-
-# Uncomment after this file is added to exercism/rust (and remove file in current repo)
-#curl -O -J https://raw.githubusercontent.com/exercism/rust/main/supported_crates
-
-# this can't be parallelized, there's a lock on package cache when using cargo search
-append_dep() {
-  echo "retrieving info for $1..."
-  cargo search "$1" | head -n 1 >> Cargo.toml
-}
-while IFS= read -r crate
-    do append_dep "$crate"
-done < supported_crates
-
-cargo generate-lockfile && cargo local-registry --sync Cargo.lock .
diff --git a/bin/update-crates-versions.sh b/bin/update-crates-versions.sh
new file mode 100755
index 0000000..f488b7d
--- /dev/null
+++ b/bin/update-crates-versions.sh
@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+MANIFEST=local-registry/Cargo.toml
+DEP_LINE=$(grep -n "\[dependencies\]" $MANIFEST | cut -d : -f 1)
+DEPS=$(tail -n +$(($DEP_LINE + 1)) $MANIFEST)
+
+while IFS= read -r line
+do
+    crate=$(echo "$line" | awk -F"[ ]+" '{print $1}')
+    >&2 echo "Retrieving latest version of $crate..."
+    latest_version=$(cargo search "$crate" | head -n 1 | awk -F"[ ]+" '{print $1  " = " $3}' | sed 's/"/\\"/g')
+    sed -i "s/^$crate =.*/$latest_version/" $MANIFEST
+ done <<< "$DEPS"
\ No newline at end of file
diff --git a/local-registry/Cargo.toml b/local-registry/Cargo.toml
index bf84061..abe9ad7 100644
--- a/local-registry/Cargo.toml
+++ b/local-registry/Cargo.toml
@@ -7,3 +7,234 @@ edition = "2021"
 path = "dummy.rs"
 
 [dependencies]
+unicode-segmentation = "1.8.0"
+chrono = "0.4.19"
+itertools = "0.10.3"
+rand = "0.8.4"
+regex = "1.5.4"
+lazy_static = "1.4.0"
+rayon = "1.5.1"
+time = "0.3.5"
+num = "0.4.0"
+unicode-reverse = "1.0.8"
+maplit = "1.0.2"
+crossbeam = "0.8.1"
+num-traits = "0.2.14"
+primes = "0.3.0"
+num-bigint = "0.4.3"
+modulo = "0.1.2"
+criterion = "0.3.5"
+num-integer = "0.1.44"
+crossbeam-utils = "0.8.5"
+bit-vec = "0.6.3"
+strum = "0.23.0"
+strum_macros = "0.23.1"
+primal = "0.3.0"
+once_cell = "1.8.0"
+failure = "0.1.8"
+counter = "0.5.2"
+permutator = "0.4.0"
+rstest = "0.11.0"
+crossbeam-channel = "0.5.1"
+bitflags = "1.3.2"
+permutohedron = "0.2.4"
+num-derive = "0.3.3"
+ndarray = "0.15.4"
+anyhow = "1.0.51"
+nom = "7.1.0"
+threadpool = "1.8.1"
+cached = "0.26.2"
+unicase = "2.6.0"
+phf = "0.10.0"
+libmath = "0.2.1"
+unicode-normalization = "0.1.19"
+rstest_reuse = "0.1.3"
+petgraph = "0.6.0"
+im = "15.0.0"
+hexlit = "0.5.3"
+enum-iterator = "0.7.0"
+boolinator = "2.4.0"
+uuid = "1.0.0-alpha.1"
+num_enum = "0.5.4"
+duplicate = "0.3.0"
+divrem = "1.0.0"
+pest = "2.1.3"
+modinverse = "0.1.1"
+dashmap = "4.0.2"
+bit-set = "0.5.2"
+bimap = "0.6.1"
+voca_rs = "1.14.0"
+unic-segment = "0.9.0"
+thiserror = "1.0.30"
+multiset = "0.0.5"
+kmp = "0.1.1"
+gcd = "2.0.2"
+fnv = "1.0.7"
+derivative = "2.2.0"
+ascii = "1.0.0"
+unicode_reader = "1.0.2"
+unic-char-range = "0.9.0"
+structopt = "0.3.25"
+scan_fmt = "0.2.6"
+pretty_assertions = "1.0.0"
+pest_derive = "2.1.0"
+multimap = "0.8.3"
+try_opt = "0.2.0"
+integer-sqrt = "0.1.5"
+int-enum = "0.4.0"
+indexmap = "1.7.0"
+hashers = "1.0.1"
+grapheme = "0.0.0"
+factorial = "0.2.1"
+eval = "0.4.3"
+derive_more = "0.99.17"
+counted-array = "0.1.2"
+case = "1.0.0"
+bitvec = "1.0.0-rc1"
+arrayvec = "0.7.2"
+Inflector = "0.11.4"
+watch = "0.2.0"
+stringsort = "2.0.0"
+serde = "1.0.130"
+rusqlite = "0.26.1"
+reikna = "0.12.3"
+modexp = "0.2.2"
+mod_exp = "1.0.1"
+lazysort = "0.2.1"
+evalexpr = "6.6.0"
+enumflags2 = "0.7.1"
+enum_derive = "0.1.7"
+custom_derive = "0.1.7"
+char_stream = "0.1.8"
+bytecount = "0.6.2"
+bencher = "0.1.5"
+unzip-n = "0.1.2"
+unic-normal = "0.9.0"
+transpose = "0.2.1"
+test-case = "1.2.1"
+subslice = "0.2.3"
+strfmt = "0.1.6"
+slow_primes = "0.1.14"
+serde_derive = "1.0.130"
+say-number = "1.0.0"
+rustversion = "1.0.6"
+rs_poker = "2.0.0-alpha.1"
+recur-fn = "2.2.0"
+readonly = "0.2.0"
+rand_chacha = "0.3.1"
+ramp = "0.6.0"
+quickcheck_macros = "1.0.0"
+quickcheck = "1.0.3"
+proptest = "1.0.0"
+prime_tools = "0.3.4"
+peg = "0.7.0"
+pcre = "0.2.3"
+ordered-float = "2.8.0"
+onig = "6.3.1"
+num_cpus = "1.13.0"
+luhn = "1.0.1"
+linked_hash_set = "0.1.4"
+linked-hash-map = "0.5.4"
+libm = "0.2.1"
+inflections = "1.1.1"
+indicatif = "0.17.0-beta.1"
+imageproc = "0.22.0"
+image = "0.23.14"
+if_chain = "1.0.2"
+hashbag = "0.1.4"
+generational-arena = "0.2.8"
+frunk = "0.4.0"
+factor = "0.4.0"
+enum-primitive-derive = "0.2.2"
+either = "1.6.1"
+digits_iterator = "0.1.0"
+csv = "1.1.6"
+conv = "0.3.3"
+compare = "0.1.0"
+char-iter = "0.1.0"
+caseless = "0.2.1"
+binomial-iter = "0.1.0"
+bigint = "4.4.3"
+bigdecimal = "0.3.0"
+async-std = "1.10.0"
+async-channel = "1.6.1"
+assert_float_eq = "1.1.3"
+array_tool = "1.0.3"
+z3 = "0.11.2"
+xvii = "0.4.1"
+workerpool = "1.2.0"
+unidecode = "0.3.0"
+unicode-case-mapping = "0.2.0"
+unic-langid = "0.9.0"
+tramp = "0.3.0"
+tinyset = "0.4.6"
+stringreader = "0.1.1"
+static_assertions = "1.1.0"
+spinning_top = "0.2.4"
+sparse-bitfield = "0.11.0"
+sliding_windows = "3.0.0"
+simplelog = "0.11.0"
+simple_parallel = "0.3.0"
+serial_test = "0.5.1"
+scoped_threadpool = "0.1.9"
+scoped-pool = "1.0.0"
+rustc-hash = "1.1.0"
+rug = "1.14.0"
+reduce = "0.1.4"
+queues = "1.1.0"
+pprof = "0.6.1"
+phf_macros = "0.10.0"
+pathfinding = "2.2.2"
+out = "6.1.0"
+numtoa = "0.2.4"
+num-format = "0.4.0"
+num-digitize = "0.4.2"
+mustache = "0.9.0"
+memoize = "0.1.9"
+macro-attr = "0.2.0"
+log = "0.4.14"
+lexical-sort = "0.3.1"
+left-pad = "1.0.1"
+lalrpop-util = "0.19.6"
+itoa = "0.4.8"
+indoc = "1.0.3"
+incremental-topo = "0.1.2"
+humantime = "2.1.0"
+hashbrown = "0.11.2"
+genawaiter = "0.99.1"
+futures-core = "0.3.18"
+free-ranges = "1.0.7"
+foreach = "0.3.0"
+fluent = "0.16.0"
+flamer = "0.4.0"
+flame = "0.2.2"
+flagset = "0.4.2"
+fixedbitset = "0.4.0"
+fasteval = "0.2.4"
+fancy-regex = "0.7.1"
+failure_derive = "0.1.8"
+enumset = "1.0.8"
+enum-utils = "0.1.2"
+encode_unicode = "0.3.6"
+easybench = "1.1.0"
+divisors = "0.2.1"
+dia-time = "6.1.0"
+deunicode = "1.3.1"
+defaultmap = "0.5.0"
+cranelift-simplejit = "0.68.0"
+cranelift-module = "0.78.0"
+cranelift = "0.78.0"
+cow-utils = "0.1.2"
+convert_case = "0.4.0"
+const_fn_assert = "0.1.2"
+clap = "3.0.0-beta.5"
+chomp = "0.3.1"
+chashmap = "2.2.2"
+change-case = "0.2.0"
+cast = "0.3.0"
+case_insensitive_hashmap = "1.0.0"
+bstr = "0.2.17"
+binary-heap-plus = "0.4.1"
+as-slice = "0.2.1"
+arr_macro = "0.1.3"
+alloc_counter = "0.0.4"