diff --git a/Libraries/LibRegex/RegexMatch.h b/Libraries/LibRegex/RegexMatch.h
index 7a81f61834d..6da85b57f4d 100644
--- a/Libraries/LibRegex/RegexMatch.h
+++ b/Libraries/LibRegex/RegexMatch.h
@@ -418,7 +418,8 @@ struct MatchState {
         auto combine = [&hash](auto value) {
             hash ^= value + 0x9e3779b97f4a7c15 + (hash << 6) + (hash >> 2);
         };
-        auto combine_vector = [&hash](auto const& vector) {
+        auto combine_vector = [&hash](auto const& vector, auto tag) {
+            hash ^= tag * (vector.size() + 1);
             for (auto& value : vector) {
                 hash ^= value;
                 hash *= 0x100000001b3;
@@ -431,8 +432,8 @@ struct MatchState {
         combine(instruction_position);
         combine(fork_at_position);
         combine(initiating_fork.value_or(0) + initiating_fork.has_value());
-        combine_vector(repetition_marks);
-        combine_vector(checkpoints);
+        combine_vector(repetition_marks, 0xbeefbeefbeefbeef);
+        combine_vector(checkpoints, 0xfacefacefaceface);
 
         return hash;
     }
diff --git a/Libraries/LibRegex/RegexMatcher.cpp b/Libraries/LibRegex/RegexMatcher.cpp
index ee2b2a29183..d5c9784be52 100644
--- a/Libraries/LibRegex/RegexMatcher.cpp
+++ b/Libraries/LibRegex/RegexMatcher.cpp
@@ -467,11 +467,18 @@ private:
     Node* m_last { nullptr };
 };
 
+struct SufficientlyUniformValueTraits : DefaultTraits<u64> {
+    static constexpr unsigned hash(u64 value)
+    {
+        return (value >> 32) ^ value;
+    }
+};
+
 template<class Parser>
 bool Matcher<Parser>::execute(MatchInput const& input, MatchState& state, size_t& operations) const
 {
     BumpAllocatedLinkedList<MatchState> states_to_try_next;
-    HashTable<u64> seen_state_hashes;
+    HashTable<u64, SufficientlyUniformValueTraits> seen_state_hashes;
 #if REGEX_DEBUG
     size_t recursion_level = 0;
 #endif