Update dependencies on SXP and EBNF.

README.md

@@ -382,6 +382,10 @@ Find more examples in {SPARQL::Grammar} and {SPARQL::Algebra}.
 
 Full documentation available on [Rubydoc.info][SPARQL doc]
 
+## Change Log
+
+See [Release Notes on GitHub](https://github.com/ruby-rdf/sparql/releases)
+
 ### Principle Classes
 
 * {SPARQL}
@@ -400,7 +404,7 @@ Full documentation available on [Rubydoc.info][SPARQL doc]
 * [Ruby](https://ruby-lang.org/) (>= 3.0)
 * [RDF.rb](https://rubygems.org/gems/rdf) (~> 3.3)
 * [SPARQL::Client](https://rubygems.org/gems/sparql-client) (~> 3.3)
-* [SXP](https://rubygems.org/gems/sxp) (~> 1.2)
+* [SXP](https://rubygems.org/gems/sxp) (~> 2.0)
 * [Builder](https://rubygems.org/gems/builder) (~> 3.2)
 * [JSON](https://rubygems.org/gems/json) (~> 2.6)
 * Soft dependency on [Linked Data][] (>= 3.3)

sparql.gemspec

@@ -31,10 +31,10 @@ Gem::Specification.new do |gem|
   gem.requirements               = []
   gem.add_runtime_dependency     'rdf',                '~> 3.3'
   gem.add_runtime_dependency     'rdf-aggregate-repo', '~> 3.3'
-  gem.add_runtime_dependency     'ebnf',               '~> 2.4'
+  gem.add_runtime_dependency     'ebnf',               '~> 2.5'
   gem.add_runtime_dependency     'builder',            '~> 3.2', '>= 3.2.4'
   gem.add_runtime_dependency     'logger',             '~> 1.5'
-  gem.add_runtime_dependency     'sxp',                '~> 1.3'
+  gem.add_runtime_dependency     'sxp',                '~> 2.0'
   gem.add_runtime_dependency     'sparql-client',      '~> 3.3'
   gem.add_runtime_dependency     'rdf-xsd',            '~> 3.3'