diff --git a/Cargo.lock b/Cargo.lock
index e736e86ca6..67608b9bec 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -982,9 +982,9 @@ dependencies = [
 
 [[package]]
 name = "deno_core"
-version = "0.198.0"
+version = "0.199.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9b34b6caa86eeea6f1449334c9ee26bec07e1db909bff5a4849727482cf06473"
+checksum = "70fbd0cb620ac36fac08d708c5f01362280c5aa8149657a225db4932bd73758e"
 dependencies = [
  "anyhow",
  "bytes",
@@ -1354,9 +1354,9 @@ dependencies = [
 
 [[package]]
 name = "deno_ops"
-version = "0.76.0"
+version = "0.77.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e4ca7df186f9f20d087a03d0ab314706bf5ffec1cf18c658efae833ce5dac3e8"
+checksum = "8b345c096fd8433337ed8e1727f4732397c134e188e1739c88b0c077869020f3"
 dependencies = [
  "deno-proc-macro-rules",
  "lazy-regex",
@@ -1371,7 +1371,6 @@ dependencies = [
  "syn 1.0.109",
  "syn 2.0.22",
  "thiserror",
- "v8",
 ]
 
 [[package]]
@@ -4457,9 +4456,9 @@ dependencies = [
 
 [[package]]
 name = "serde_v8"
-version = "0.109.0"
+version = "0.110.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "440a8a1f1cb9abe071937aa5190b0186fa6ce15ba0de5f88e57f71583e212b2c"
+checksum = "b3bafaee0eecbef6c47ad3e7e0a764e22eb35a229ff7d06b7801fcbeaa5364b8"
 dependencies = [
  "bytes",
  "derive_more",
diff --git a/Cargo.toml b/Cargo.toml
index 1b7a394f9b..ae8696b3af 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -41,9 +41,9 @@ repository = "https://github.com/denoland/deno"
 v8 = { version = "0.74.1", default-features = false }
 deno_ast = { version = "0.27.0", features = ["transpiling"] }
 
-deno_core = "0.198.0"
-deno_ops = "0.76.0"
-serde_v8 = "0.109.0"
+deno_core = "0.199.0"
+deno_ops = "0.77.0"
+serde_v8 = "0.110.0"
 
 deno_runtime = { version = "0.121.0", path = "./runtime" }
 napi_sym = { version = "0.43.0", path = "./cli/napi/sym" }
diff --git a/cli/tests/integration/worker_tests.rs b/cli/tests/integration/worker_tests.rs
index 916e8c8874..aa6d64d2b8 100644
--- a/cli/tests/integration/worker_tests.rs
+++ b/cli/tests/integration/worker_tests.rs
@@ -108,3 +108,10 @@ itest!(worker_error_event {
   output: "workers/error_event.ts.out",
   exit_code: 1,
 });
+
+// Regression test for https://github.com/denoland/deno/issues/19903
+itest!(worker_doest_stall_event_loop {
+  args: "run --quiet -A workers/worker_doest_stall_event_loop.ts",
+  output: "workers/worker_doest_stall_event_loop.ts.out",
+  exit_code: 0,
+});
diff --git a/cli/tests/testdata/workers/worker_doest_stall_event_loop.ts b/cli/tests/testdata/workers/worker_doest_stall_event_loop.ts
new file mode 100644
index 0000000000..bfddee2eca
--- /dev/null
+++ b/cli/tests/testdata/workers/worker_doest_stall_event_loop.ts
@@ -0,0 +1,29 @@
+const moduleCode = `
+console.log('module start');
+const hash = await crypto.subtle.digest('SHA-1', new TextEncoder().encode('data'));
+const __default = {};
+export { __default as default };
+console.log('module finish');
+`;
+
+const workerCode = `
+    console.log('worker!');
+
+    globalThis.onmessage = (msg) => {
+        const { moduleCode } = msg.data;
+        (async () => {
+            console.log('before import');
+            await import(URL.createObjectURL(new Blob([ moduleCode ])));
+            console.log('after import');
+            self.postMessage('thanks');
+        })();
+    }
+`;
+const worker = new Worker(URL.createObjectURL(new Blob([workerCode])), {
+  type: "module",
+});
+worker.onmessage = () => {
+  console.log("worker.terminate");
+  worker.terminate();
+};
+worker.postMessage({ moduleCode });
diff --git a/cli/tests/testdata/workers/worker_doest_stall_event_loop.ts.out b/cli/tests/testdata/workers/worker_doest_stall_event_loop.ts.out
new file mode 100644
index 0000000000..5ed65b02f3
--- /dev/null
+++ b/cli/tests/testdata/workers/worker_doest_stall_event_loop.ts.out
@@ -0,0 +1,6 @@
+worker!
+before import
+module start
+module finish
+after import
+worker.terminate