diff --git a/DEPS b/DEPS
index 139354b23a17..b609c6f860c7 100644
--- a/DEPS
+++ b/DEPS
@@ -1,7 +1,7 @@
 use_relative_paths = True
 
 deps = {
-  "vendor/adblock_rust_ffi": "https://github.com/brave/adblock-rust-ffi.git@a6342c37be1618627395ce6241d36a291e2da72f",
+  "vendor/adblock_rust_ffi": "https://github.com/brave/adblock-rust-ffi.git@496ca6987be657f1f315239f2830ac4a12b2aa69",
   "vendor/extension-whitelist": "https://github.com/brave/extension-whitelist.git@b4d059c73042cacf3a5e9156d4b1698e7bc18678",
   "vendor/hashset-cpp": "https://github.com/brave/hashset-cpp.git@6eab0271d014ff09bd9f38abe1e0c117e13e9aa9",
   "vendor/requests": "https://github.com/kennethreitz/requests@e4d59bedfd3c7f4f254f4f5d036587bcd8152458",
diff --git a/build/rust/Cargo.lock b/build/rust/Cargo.lock
index bc0763de6329..df0e741d25da 100644
--- a/build/rust/Cargo.lock
+++ b/build/rust/Cargo.lock
@@ -12,7 +12,7 @@ dependencies = [
  "flate2",
  "hashbrown",
  "idna 0.2.0",
- "itertools",
+ "itertools 0.8.2",
  "lazy_static",
  "lifeguard",
  "matches",
@@ -29,14 +29,14 @@ dependencies = [
 
 [[package]]
 name = "adblock"
-version = "0.3.2"
-source = "git+https://github.com/brave/adblock-rust?rev=a54fcc29c3d904ffaf438501efe7708caaab4483#a54fcc29c3d904ffaf438501efe7708caaab4483"
+version = "0.3.3"
+source = "git+https://github.com/brave/adblock-rust?rev=dbb0bee71faa6f1812888638dae3559e91008382#dbb0bee71faa6f1812888638dae3559e91008382"
 dependencies = [
- "base64 0.10.1",
+ "base64 0.13.0",
  "bitflags",
  "flate2",
  "idna 0.2.0",
- "itertools",
+ "itertools 0.9.0",
  "lifeguard",
  "once_cell",
  "percent-encoding 2.1.0",
@@ -52,7 +52,7 @@ dependencies = [
 name = "adblock-ffi"
 version = "0.1.0"
 dependencies = [
- "adblock 0.3.2",
+ "adblock 0.3.3",
  "libc",
  "serde_json",
 ]
@@ -149,6 +149,12 @@ dependencies = [
  "byteorder",
 ]
 
+[[package]]
+name = "base64"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
+
 [[package]]
 name = "bitflags"
 version = "1.2.1"
@@ -552,6 +558,15 @@ dependencies = [
  "either",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "284f18f85651fe11e8a991b2adb42cb078325c996ed026d994719efcfca1d54b"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itoa"
 version = "0.4.6"
@@ -724,9 +739,9 @@ checksum = "1ab52be62400ca80aa00285d25253d7f7c437b7375c4de678f5405d3afe82ca5"
 
 [[package]]
 name = "once_cell"
-version = "1.4.0"
+version = "1.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b631f7e854af39a1739f401cf34a8a013dfe09eac4fa4dba91e9768bd28168d"
+checksum = "13bd41f508810a131401606d54ac32a467c97172d74ba7662562ebba5ad07fa0"
 
 [[package]]
 name = "opaque-debug"
@@ -1141,9 +1156,9 @@ checksum = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"
 
 [[package]]
 name = "regex"
-version = "1.3.9"
+version = "1.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c3780fcf44b193bc4d09f36d2a3c87b251da4a046c87795a0d35f4f927ad8e6"
+checksum = "38cf2c13ed4745de91a5eb834e11c00bcc3709e773173b2ce4c56c9fbde04b9c"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -1153,9 +1168,9 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.18"
+version = "0.6.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26412eb97c6b088a6997e05f69403a802a92d520de2f8e63c2b65f9e0f47c4e8"
+checksum = "3b181ba2dcf07aaccad5448e8ead58db5b742cf85dfe035e2227f137a539a189"
 
 [[package]]
 name = "remove_dir_all"
diff --git a/components/brave_shields/browser/ad_block_base_service.cc b/components/brave_shields/browser/ad_block_base_service.cc
index 86f8ec652637..c3255d04c781 100644
--- a/components/brave_shields/browser/ad_block_base_service.cc
+++ b/components/brave_shields/browser/ad_block_base_service.cc
@@ -128,13 +128,11 @@ bool AdBlockBaseService::ShouldStartRequest(
       url,
       url::Origin::CreateFromNormalizedTuple("https", tab_host.c_str(), 80),
       INCLUDE_PRIVATE_REGISTRIES);
-  // TODO(spinda): Remove explicit_cancel here when removed from adblock-rust.
-  bool explicit_cancel;
   bool saved_from_exception;
-  if (ad_block_client_->matches(
-          url.spec(), url.host(), tab_host, is_third_party,
-          ResourceTypeToString(resource_type), &explicit_cancel,
-          &saved_from_exception, mock_data_url)) {
+  if (ad_block_client_->matches(url.spec(), url.host(), tab_host,
+                                is_third_party,
+                                ResourceTypeToString(resource_type),
+                                &saved_from_exception, mock_data_url)) {
     // We'd only possibly match an exception filter if we're returning true.
     if (did_match_exception) {
       *did_match_exception = false;