diff --git a/.github/workflows/test262.yml b/.github/workflows/test262.yml
index 95822eae107..4565f495ad5 100644
--- a/.github/workflows/test262.yml
+++ b/.github/workflows/test262.yml
@@ -16,10 +16,10 @@ concurrency:
 
 jobs:
   run_test262:
-    if: ${{ github.base_ref != 'dev/oscars-gc' }}
+    if: true
     name: Run the test262 test suite
     runs-on: ubuntu-latest
-    timeout-minutes: 60
+    timeout-minutes: 120
     steps:
       - name: Checkout repository
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
diff --git a/Cargo.lock b/Cargo.lock
index b35b89ecf19..c980b4b5fb3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -618,6 +618,7 @@ version = "0.23.0-dev"
 dependencies = [
  "bitflags",
  "boa_engine",
+ "boa_gc",
  "boa_runtime",
  "clap",
  "color-eyre",
@@ -2859,7 +2860,7 @@ dependencies = [
 [[package]]
 name = "oscars"
 version = "0.1.0"
-source = "git+https://github.com/boa-dev/oscars.git?branch=main#6af6e1a2b1689c7eeff9675352a8d3bccf5abc11"
+source = "git+https://github.com/shruti2522/oscars.git?branch=fix-oom#f243432479c161b8c893c08e4054ab217417f7d7"
 dependencies = [
  "arrayvec",
  "either",
@@ -2874,7 +2875,7 @@ dependencies = [
 [[package]]
 name = "oscars_derive"
 version = "0.1.0"
-source = "git+https://github.com/boa-dev/oscars.git?branch=main#6af6e1a2b1689c7eeff9675352a8d3bccf5abc11"
+source = "git+https://github.com/shruti2522/oscars.git?branch=fix-oom#f243432479c161b8c893c08e4054ab217417f7d7"
 dependencies = [
  "cfg-if",
  "proc-macro2",
diff --git a/core/gc/Cargo.toml b/core/gc/Cargo.toml
index 030298d6d33..fc8b9eea6cd 100644
--- a/core/gc/Cargo.toml
+++ b/core/gc/Cargo.toml
@@ -34,7 +34,7 @@ either = { workspace = true, optional = true }
 thin-vec = { workspace = true, optional = true }
 icu_locale_core = { workspace = true, optional = true }
 arrayvec = { workspace = true, optional = true }
-oscars = { git = "https://github.com/boa-dev/oscars.git", branch = "main", features = ["mark_sweep_branded"], optional = true }
+oscars = { git = "https://github.com/shruti2522/oscars.git", branch = "fix-oom", features = ["mark_sweep_branded"], optional = true }
 typeid = { workspace = true, optional = true }
 
 [lints]
diff --git a/core/gc/src/context.rs b/core/gc/src/context.rs
index 5250d0f2266..f41a8dd2d4e 100644
--- a/core/gc/src/context.rs
+++ b/core/gc/src/context.rs
@@ -27,16 +27,11 @@ impl GcContext {
     #[must_use]
     pub fn gc_collector(&self) -> &'static MutationContext<'static, 'static> {
         thread_local! {
-            static COLLECTOR: &'static oscars::collectors::mark_sweep_branded::Collector =
-                Box::leak(Box::new(oscars::collectors::mark_sweep_branded::Collector::new()));
-
-            static DUMMY: &'static MutationContext<'static, 'static> = COLLECTOR.with(|c| {
-                Box::leak(Box::new(unsafe {
-                    MutationContext::from_collector_erased(c)
-                }))
-            });
+            static GLOBAL_CTX: &'static MutationContext<'static, 'static> = {
+                Box::leak(Box::new(MutationContext::global()))
+            };
         }
-        DUMMY.with(|dummy| *dummy)
+        GLOBAL_CTX.with(|ctx| *ctx)
     }
 }
 
diff --git a/core/gc/src/lib.rs b/core/gc/src/lib.rs
index 2296038dc87..ac4d0e654d6 100644
--- a/core/gc/src/lib.rs
+++ b/core/gc/src/lib.rs
@@ -171,4 +171,6 @@ mod test;
 
 #[cfg(feature = "oscars_backend")]
 /// Forces a garbage collection
-pub fn force_collect() {}
+pub fn force_collect() {
+    oscars::collectors::mark_sweep_branded::MutationContext::global().collect();
+}
diff --git a/core/string/Cargo.toml b/core/string/Cargo.toml
index 89ee9a52791..8f1247e6f14 100644
--- a/core/string/Cargo.toml
+++ b/core/string/Cargo.toml
@@ -12,7 +12,7 @@ repository.workspace = true
 rust-version.workspace = true
 
 [dependencies]
-oscars = { git = "https://github.com/boa-dev/oscars.git", branch = "main", features = ["mark_sweep_branded"], optional = true }
+oscars = { git = "https://github.com/shruti2522/oscars.git", branch = "fix-oom", features = ["mark_sweep_branded"], optional = true }
 itoa.workspace = true
 rustc-hash = { workspace = true, features = ["std"] }
 ryu-js.workspace = true
diff --git a/tests/tester/Cargo.toml b/tests/tester/Cargo.toml
index f1fe5cad1bf..7d9b827bd90 100644
--- a/tests/tester/Cargo.toml
+++ b/tests/tester/Cargo.toml
@@ -14,6 +14,7 @@ rust-version.workspace = true
 [dependencies]
 boa_engine = { workspace = true, features = ["float16"] }
 boa_runtime = { workspace = true, features = ["test262"] }
+boa_gc = { workspace = true }
 clap = { workspace = true, features = ["derive"] }
 serde = { workspace = true, features = ["derive"] }
 serde_yaml = "0.9.34" # TODO: Track https://github.com/saphyr-rs/saphyr.
diff --git a/tests/tester/src/exec/mod.rs b/tests/tester/src/exec/mod.rs
index 4fbe43a7a9d..8147b427c35 100644
--- a/tests/tester/src/exec/mod.rs
+++ b/tests/tester/src/exec/mod.rs
@@ -515,6 +515,8 @@ impl Test {
             },
         );
 
+        boa_gc::force_collect();
+
         self.create_result(result, result_text, strict, verbosity)
     }