diff --git a/test/prism/errors_test.rb b/test/prism/errors_test.rb
index 8a26663c07..4d35d057cf 100644
--- a/test/prism/errors_test.rb
+++ b/test/prism/errors_test.rb
@@ -117,25 +117,25 @@ module Prism
 
     def test_unterminated_i_list
       assert_errors expression("%i["), "%i[", [
-        ["expected a closing delimiter for the `%i` list", 0..3]
+        ["unterminated list; expected a closing delimiter for the `%i`", 0..3]
       ]
     end
 
     def test_unterminated_w_list
       assert_errors expression("%w["), "%w[", [
-        ["expected a closing delimiter for the `%w` list", 0..3]
+        ["unterminated list; expected a closing delimiter for the `%w`", 0..3]
       ]
     end
 
     def test_unterminated_W_list
       assert_errors expression("%W["), "%W[", [
-        ["expected a closing delimiter for the `%W` list", 0..3]
+        ["unterminated list; expected a closing delimiter for the `%W`", 0..3]
       ]
     end
 
     def test_unterminated_regular_expression
       assert_errors expression("/hello"), "/hello", [
-        ["expected a closing delimiter for the regular expression", 0..1]
+        ["unterminated regexp meets end of file; expected a closing delimiter", 0..1]
       ]
     end
 
@@ -143,7 +143,7 @@ module Prism
       source = "<<-END + /b\nEND\n"
 
       assert_errors expression(source), source, [
-        ["expected a closing delimiter for the regular expression", 9..10]
+        ["unterminated regexp meets end of file; expected a closing delimiter", 9..10]
       ]
     end
 
@@ -189,7 +189,7 @@ module Prism
 
     def test_unterminated_s_symbol
       assert_errors expression("%s[abc"), "%s[abc", [
-        ["expected a closing delimiter for the dynamic symbol", 0..3]
+        ["unterminated quoted string; expected a closing delimiter for the dynamic symbol", 0..3]
       ]
     end
 
@@ -690,13 +690,13 @@ module Prism
       expected = StringNode(StringFlags::FORCED_UTF8_ENCODING, Location(), Location(), nil, "\u0001\u0002")
 
       assert_errors expected, '?\u{0001 0002}', [
-        ["invalid Unicode escape sequence; multiple codepoints are not allowed in a character literal", 9..12]
+        ["invalid Unicode escape sequence; Multiple codepoints at single character literal are disallowed", 9..12]
       ]
     end
 
     def test_invalid_hex_escape
       assert_errors expression('"\\xx"'), '"\\xx"', [
-        ["invalid hexadecimal escape sequence", 1..3],
+        ["invalid hex escape sequence", 1..3],
       ]
     end
 
@@ -1238,7 +1238,7 @@ module Prism
       expected = CallNode(0, receiver, Location(), :foo, Location(), nil, nil, nil, nil)
 
       assert_errors expected, "<<~FOO.foo\n", [
-        ["could not find a terminator for the heredoc", 11..11]
+        ["unterminated heredoc; can't find string \"FOO\"", 3..6]
       ]
     end