diff --git a/Gemfile b/Gemfile
index 1466767..9394193 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,3 +3,6 @@ source 'https://rubygems.org'
 gemspec
 
 gem "snappy"
+
+# gem "memcached", path: "../memcached"
+gem "memcached", github: "Shopify/memcached", branch: "catlee/with_error_value"
diff --git a/lib/active_support/cache/memcached_store.rb b/lib/active_support/cache/memcached_store.rb
index 92fde8b..7180159 100644
--- a/lib/active_support/cache/memcached_store.rb
+++ b/lib/active_support/cache/memcached_store.rb
@@ -138,14 +138,20 @@ def cas(name, options = nil)
 
         success = handle_exceptions(return_value_on_error: false) do
           instrument(:cas, name, options) do
-            @connection.cas(key, expiration(options)) do |raw_value|
-              entry = deserialize_entry(raw_value)
-              value = yield entry.value
-              break true if read_only
-              payload = serialize_entry(Entry.new(value, **options), options)
+            @connection.without_exceptions do
+              ret = @connection.cas(key, expiration(options)) do |raw_value|
+                entry = deserialize_entry(raw_value)
+                value = yield entry.value
+                break true if read_only
+                payload = serialize_entry(Entry.new(value, **options), options)
+              end
+              # `cas` returns NOT_FOUND if the key doesn't exist, DATA_EXISTS if the key was modified by another client
+              # and it returns `nil` on success,
+              #
+              # Here we just want to return true/false if the key was set successfully, which is the case when `cas` returns nil
+              ret == nil
             end
           end
-          true
         end
 
         if success
@@ -288,7 +294,11 @@ def read_entry(key, **options) # :nodoc:
 
         def read_serialized_entry(key, **)
           handle_exceptions(return_value_on_error: nil) do
-            @connection.get(key)
+            @connection.without_exceptions do
+              val = @connection.get(key)
+              return nil if val == Memcached::NOT_FOUND
+              val
+            end
           end
         end
 
diff --git a/memcached_store.gemspec b/memcached_store.gemspec
index d2d1524..d6e2ff3 100644
--- a/memcached_store.gemspec
+++ b/memcached_store.gemspec
@@ -20,7 +20,7 @@ Gem::Specification.new do |spec|
   spec.required_ruby_version = ">= 2.6.0"
 
   spec.add_runtime_dependency "activesupport", ">= 6"
-  spec.add_runtime_dependency "memcached", "~> 1.8"
+  spec.add_runtime_dependency "memcached", ">= 1.10"
 
   spec.add_development_dependency "rake"
   spec.add_development_dependency "mocha"