diff --git a/alkstore-mem/Cargo.toml b/alkstore-mem/Cargo.toml
index a76afa4..479ad67 100644
--- a/alkstore-mem/Cargo.toml
+++ b/alkstore-mem/Cargo.toml
@@ -16,4 +16,4 @@ tokio = { version = "1", features = ["sync", "time"] }
 
 [dev-dependencies]
 alkstore-contract-suite = { path = "../alkstore-contract-suite" }
-tokio = { version = "1", features = ["rt", "macros"] }
\ No newline at end of file
+tokio = { version = "1", features = ["rt-multi-thread", "macros", "time", "test-util"] }
\ No newline at end of file
diff --git a/alkstore-postgres/Cargo.toml b/alkstore-postgres/Cargo.toml
index da20fc6..78d1ce4 100644
--- a/alkstore-postgres/Cargo.toml
+++ b/alkstore-postgres/Cargo.toml
@@ -20,4 +20,4 @@ tracing = "0.1"
 
 [dev-dependencies]
 alkstore-contract-suite = { path = "../alkstore-contract-suite" }
-tokio = { version = "1", features = ["test-util"] }
\ No newline at end of file
+tokio = { version = "1", features = ["rt-multi-thread", "macros", "time", "test-util"] }
\ No newline at end of file
diff --git a/alkstore-sqlite/Cargo.toml b/alkstore-sqlite/Cargo.toml
index 20ff1ac..0f8b6ce 100644
--- a/alkstore-sqlite/Cargo.toml
+++ b/alkstore-sqlite/Cargo.toml
@@ -26,4 +26,4 @@ file-id = "0.2"
 
 [dev-dependencies]
 alkstore-contract-suite = { path = "../alkstore-contract-suite" }
-tokio = { version = "1", features = ["rt-multi-thread", "macros", "time"] }
\ No newline at end of file
+tokio = { version = "1", features = ["rt-multi-thread", "macros", "time", "test-util"] }
\ No newline at end of file
diff --git a/tasks/normalize-tokio-dev-deps.md b/tasks/normalize-tokio-dev-deps.md
index 9a6b396..f266706 100644
--- a/tasks/normalize-tokio-dev-deps.md
+++ b/tasks/normalize-tokio-dev-deps.md
@@ -1,7 +1,7 @@
 ---
 id: normalize-tokio-dev-deps
 name: Normalize the engines' dev-dep tokio feature sets (review 004 item 16)
-status: pending
+status: completed
 depends_on: []
 scope: single
 risk: trivial
@@ -43,8 +43,23 @@ change.
 
 ## Notes
 
-> To be filled by implementation agent
+<!-- implementation decisions of record -->
+
+The union picked exactly matches the task's expectation:
+`rt-multi-thread + macros + time + test-util` — the pg engine's
+dev-dep `test-util` coverage is preserved, no engine's tests needed
+anything beyond the union, and no code change was required anywhere.
 
 ## Summary
 
-> To be filled on completion
\ No newline at end of file
+Normalized all three engines' `[dev-dependencies]` tokio feature sets
+to `["rt-multi-thread", "macros", "time", "test-util"]` (previously:
+sqlite `rt-multi-thread+macros+time`, pg `test-util`, mem `rt+macros`)
+— dev-dep metadata only, no published-surface or runtime-dep change.
+
+Verified (2026-10-11): workspace `cargo build`, `cargo clippy
+--all-targets -- -D warnings`, `cargo fmt --check` all clean;
+`cargo test -p` green for alkstore-mem (102 unit + 26 ct),
+alkstore-sqlite (203 unit + 26 ct + 1 doc), alkstore-postgres
+(135 unit + 26 ct + 9 integration, full target incl. the server-less
+SKIP posture).