diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index b15e9a5f4..0213f5e6d 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -136,7 +136,7 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - uses: stellar/actions/rust-cache@main
-    - run: rustup install nightly
+    - run: rustup install nightly-2024-02-03
     - uses: stellar/binaries@v15
       with:
         name: cargo-fuzz
@@ -148,7 +148,8 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - uses: stellar/actions/rust-cache@main
-    - run: rustup install nightly
+    # TODO: Upgrade to latest nightly after problem that was introduced in nightly-2024-02-05 (https://github.com/dalek-cryptography/curve25519-dalek/issues/618) is resolved.
+    - run: rustup install nightly-2024-02-03
     - run: make doc
 
   readme:
@@ -156,7 +157,7 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - uses: stellar/actions/rust-cache@main
-    - run: rustup install nightly
+    - run: rustup install nightly-2024-02-03
     - run: make readme
     - run: git add -N . && git diff HEAD --exit-code
 
diff --git a/Cargo.lock b/Cargo.lock
index 652b1138b..581258e14 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1172,7 +1172,7 @@ dependencies = [
 
 [[package]]
 name = "soroban-ledger-snapshot"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "pretty_assertions",
  "serde",
@@ -1185,7 +1185,7 @@ dependencies = [
 
 [[package]]
 name = "soroban-sdk"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "arbitrary",
  "bytes-lit",
@@ -1208,7 +1208,7 @@ dependencies = [
 
 [[package]]
 name = "soroban-sdk-macros"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "crate-git-revision",
  "darling",
@@ -1226,7 +1226,7 @@ dependencies = [
 
 [[package]]
 name = "soroban-spec"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "base64 0.13.1",
  "pretty_assertions",
@@ -1237,7 +1237,7 @@ dependencies = [
 
 [[package]]
 name = "soroban-spec-rust"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "pretty_assertions",
  "prettyplease",
@@ -1252,7 +1252,7 @@ dependencies = [
 
 [[package]]
 name = "soroban-token-sdk"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "soroban-sdk",
 ]
@@ -1356,119 +1356,119 @@ dependencies = [
 
 [[package]]
 name = "test_add_i128"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "soroban-sdk",
 ]
 
 [[package]]
 name = "test_add_u128"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "soroban-sdk",
 ]
 
 [[package]]
 name = "test_add_u64"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "soroban-sdk",
 ]
 
 [[package]]
 name = "test_alloc"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "soroban-sdk",
 ]
 
 [[package]]
 name = "test_auth"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "soroban-sdk",
 ]
 
 [[package]]
 name = "test_contract_data"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "soroban-sdk",
 ]
 
 [[package]]
 name = "test_empty"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "soroban-sdk",
 ]
 
 [[package]]
 name = "test_empty2"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "soroban-sdk",
 ]
 
 [[package]]
 name = "test_errors"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "soroban-sdk",
 ]
 
 [[package]]
 name = "test_events"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "soroban-sdk",
 ]
 
 [[package]]
 name = "test_fuzz"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "soroban-sdk",
 ]
 
 [[package]]
 name = "test_import_contract"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "soroban-sdk",
 ]
 
 [[package]]
 name = "test_invoke_contract"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "soroban-sdk",
 ]
 
 [[package]]
 name = "test_logging"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "soroban-sdk",
 ]
 
 [[package]]
 name = "test_multiimpl"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "soroban-sdk",
 ]
 
 [[package]]
 name = "test_udt"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "soroban-sdk",
 ]
 
 [[package]]
 name = "test_workspace_contract"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "soroban-sdk",
  "test_workspace_lib",
@@ -1476,7 +1476,7 @@ dependencies = [
 
 [[package]]
 name = "test_workspace_lib"
-version = "20.3.0"
+version = "20.3.1"
 dependencies = [
  "soroban-sdk",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index fee4de45f..4d0f06b42 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -29,16 +29,16 @@ members = [
 ]
 
 [workspace.package]
-version = "20.3.0"
+version = "20.3.1"
 rust-version = "1.74.0"
 
 [workspace.dependencies]
-soroban-sdk = { version = "20.3.0", path = "soroban-sdk" }
-soroban-sdk-macros = { version = "20.3.0", path = "soroban-sdk-macros" }
-soroban-spec = { version = "20.3.0", path = "soroban-spec" }
-soroban-spec-rust = { version = "20.3.0", path = "soroban-spec-rust" }
-soroban-ledger-snapshot = { version = "20.3.0", path = "soroban-ledger-snapshot" }
-soroban-token-sdk = { version = "20.3.0", path = "soroban-token-sdk" }
+soroban-sdk = { version = "20.3.1", path = "soroban-sdk" }
+soroban-sdk-macros = { version = "20.3.1", path = "soroban-sdk-macros" }
+soroban-spec = { version = "20.3.1", path = "soroban-spec" }
+soroban-spec-rust = { version = "20.3.1", path = "soroban-spec-rust" }
+soroban-ledger-snapshot = { version = "20.3.1", path = "soroban-ledger-snapshot" }
+soroban-token-sdk = { version = "20.3.1", path = "soroban-token-sdk" }
 
 [workspace.dependencies.soroban-env-common]
 version = "=20.2.1"
diff --git a/Makefile b/Makefile
index 3cbc1d8e6..ac75becc0 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,8 @@ CARGO_DOC_ARGS?=--open
 
 doc: fmt
 	cargo test --doc -p soroban-sdk -p soroban-sdk-macros --features testutils
-	cargo +nightly doc -p soroban-sdk --no-deps --features docs,testutils $(CARGO_DOC_ARGS)
+    # TODO: Upgrade to latest nightly after problem that was introduced in nightly-2024-02-05 (https://github.com/dalek-cryptography/curve25519-dalek/issues/618) is resolved.
+	cargo +nightly-2024-02-03 doc -p soroban-sdk --no-deps --features docs,testutils $(CARGO_DOC_ARGS)
 
 test: fmt build
 	cargo hack --feature-powerset --ignore-unknown-features --features testutils --exclude-features docs test
@@ -23,11 +24,11 @@ check: build fmt
 	cargo hack check --release --target wasm32-unknown-unknown
 
 build-fuzz:
-	cd tests/fuzz/fuzz && cargo +nightly fuzz check
+	cd tests/fuzz/fuzz && cargo +nightly-2024-02-03 fuzz check
 
 readme:
 	cd soroban-sdk \
-		&& cargo +nightly rustdoc -- -Zunstable-options -wjson \
+		&& cargo +nightly-2024-02-03 rustdoc -- -Zunstable-options -wjson \
 		&& cat ../target/doc/soroban_sdk.json \
 		| jq -r '.index[.root].docs' \
 		> README.md
@@ -36,7 +37,7 @@ watch:
 	cargo watch --clear --watch-when-idle --shell '$(MAKE)'
 
 watch-doc:
-	cargo +nightly watch --clear --watch-when-idle --shell '$(MAKE) doc CARGO_DOC_ARGS='
+	cargo +nightly-2024-02-03 watch --clear --watch-when-idle --shell '$(MAKE) doc CARGO_DOC_ARGS='
 
 fmt:
 	cargo fmt --all