diff --git a/lib/sidekiq/api.rb b/lib/sidekiq/api.rb
index dfe1eef3..c710d348 100644
--- a/lib/sidekiq/api.rb
+++ b/lib/sidekiq/api.rb
@@ -58,7 +58,7 @@ module Sidekiq
 
     def queues
       Sidekiq.redis do |conn|
-        queues = conn.sscan_each("queues").to_a
+        queues = conn.sscan("queues").to_a
 
         lengths = conn.pipelined { |pipeline|
           queues.each do |queue|
@@ -115,11 +115,11 @@ module Sidekiq
     # @api private
     def fetch_stats_slow!
       processes = Sidekiq.redis { |conn|
-        conn.sscan_each("processes").to_a
+        conn.sscan("processes").to_a
       }
 
       queues = Sidekiq.redis { |conn|
-        conn.sscan_each("queues").to_a
+        conn.sscan("queues").to_a
       }
 
       pipe2_res = Sidekiq.redis { |conn|
@@ -223,7 +223,7 @@ module Sidekiq
     #
     # @return [Array<Sidekiq::Queue>]
     def self.all
-      Sidekiq.redis { |c| c.sscan_each("queues").to_a }.sort.map { |q| Sidekiq::Queue.new(q) }
+      Sidekiq.redis { |c| c.sscan("queues").to_a }.sort.map { |q| Sidekiq::Queue.new(q) }
     end
 
     attr_reader :name
@@ -601,7 +601,7 @@ module Sidekiq
 
       match = "*#{match}*" unless match.include?("*")
       @pool.with do |conn|
-        conn.zscan_each(name, match: match, count: count) do |entry, score|
+        conn.zscan(name, match: match, count: count) do |entry, score|
           yield SortedEntry.new(self, score, entry)
         end
       end
@@ -691,7 +691,7 @@ module Sidekiq
     # @return [SortedEntry] the record or nil
     def find_job(jid)
       @pool.with do |conn|
-        conn.zscan_each(name, match: "*#{jid}*", count: 100) do |entry, score|
+        conn.zscan(name, match: "*#{jid}*", count: 100) do |entry, score|
           job = JSON.parse(entry)
           matched = job["jid"] == jid
           return SortedEntry.new(self, score, entry) if matched
@@ -832,7 +832,7 @@ module Sidekiq
       return 0 unless Sidekiq.redis { |conn| conn.set("process_cleanup", "1", nx: true, ex: 60) }
       count = 0
       Sidekiq.redis do |conn|
-        procs = conn.sscan_each("processes").to_a.sort
+        procs = conn.sscan("processes").to_a.sort
         heartbeats = conn.pipelined { |pipeline|
           procs.each do |key|
             pipeline.hget(key, "info")
@@ -852,7 +852,7 @@ module Sidekiq
 
     def each
       result = Sidekiq.redis { |conn|
-        procs = conn.sscan_each("processes").to_a.sort
+        procs = conn.sscan("processes").to_a.sort
 
         # We're making a tradeoff here between consuming more memory instead of
         # making more roundtrips to Redis, but if you have hundreds or thousands of workers,
@@ -1027,13 +1027,13 @@ module Sidekiq
     def each(&block)
       results = []
       Sidekiq.redis do |conn|
-        procs = conn.sscan_each("processes").to_a
+        procs = conn.sscan("processes").to_a
         procs.sort.each do |key|
           valid, workers = conn.pipelined { |pipeline|
-            pipeline.exists?(key)
+            pipeline.exists(key)
             pipeline.hgetall("#{key}:work")
           }
-          next unless valid
+          next unless valid > 0
           workers.each_pair do |tid, json|
             hsh = Sidekiq.load_json(json)
             p = hsh["payload"]
@@ -1055,7 +1055,7 @@ module Sidekiq
     # which can easily get out of sync with crashy processes.
     def size
       Sidekiq.redis do |conn|
-        procs = conn.sscan_each("processes").to_a
+        procs = conn.sscan("processes").to_a
         if procs.empty?
           0
         else
diff --git a/lib/sidekiq/fetch.rb b/lib/sidekiq/fetch.rb
index 9de9cd47..f297e4ef 100644
--- a/lib/sidekiq/fetch.rb
+++ b/lib/sidekiq/fetch.rb
@@ -47,7 +47,7 @@ module Sidekiq # :nodoc:
         return nil
       end
 
-      queue, job = redis { |conn| conn.brpop(*qs) }
+      queue, job = redis { |conn| conn.blocking_call(false, "brpop", *qs) }
       UnitOfWork.new(queue, job, config) if queue
     end
 
diff --git a/lib/sidekiq/launcher.rb b/lib/sidekiq/launcher.rb
index 036dedd4..de108e3c 100644
--- a/lib/sidekiq/launcher.rb
+++ b/lib/sidekiq/launcher.rb
@@ -154,7 +154,7 @@ module Sidekiq
         _, exists, _, _, msg = redis { |conn|
           conn.multi { |transaction|
             transaction.sadd("processes", key)
-            transaction.exists?(key)
+            transaction.exists(key)
             transaction.hmset(key, "info", to_json,
               "busy", curstate.size,
               "beat", Time.now.to_f,
@@ -167,7 +167,7 @@ module Sidekiq
         }
 
         # first heartbeat or recovering from an outage and need to reestablish our heartbeat
-        fire_event(:heartbeat) unless exists
+        fire_event(:heartbeat) unless exists > 0
         fire_event(:beat, oneshot: false)
 
         return unless msg
diff --git a/lib/sidekiq/redis_client_adapter.rb b/lib/sidekiq/redis_client_adapter.rb
index 8059c88b..85151a42 100644
--- a/lib/sidekiq/redis_client_adapter.rb
+++ b/lib/sidekiq/redis_client_adapter.rb
@@ -17,29 +17,10 @@ module Sidekiq
         @client.call("EVALSHA", sha, keys.size, *keys, *argv)
       end
 
-      def brpoplpush(*args)
-        @client.blocking_call(false, "BRPOPLPUSH", *args)
-      end
-
-      def brpop(*args)
-        @client.blocking_call(false, "BRPOP", *args)
-      end
-
-      def set(*args)
-        @client.call("SET", *args) { |r| r == "OK" }
-      end
-      ruby2_keywords :set if respond_to?(:ruby2_keywords, true)
-
-      def sismember(*args)
-        @client.call("SISMEMBER", *args) { |c| c > 0 }
-      end
-
-      def exists?(key)
-        @client.call("EXISTS", key) { |c| c > 0 }
-      end
-
       private
 
+      # this allows us to use methods like `conn.hmset(...)` instead of having to use
+      # redis-client's native `conn.call("hmset", ...)`
       def method_missing(*args, &block)
         @client.call(*args, *block)
       end
@@ -53,11 +34,6 @@ module Sidekiq
     CompatClient = RedisClient::Decorator.create(CompatMethods)
 
     class CompatClient
-      %i[scan sscan zscan hscan].each do |method|
-        alias_method :"#{method}_each", method
-        undef_method method
-      end
-
       # underscore methods are not official API
       def _client
         @client
diff --git a/test/api.rb b/test/api.rb
index f9eb6e89..085af3c4 100644
--- a/test/api.rb
+++ b/test/api.rb
@@ -414,7 +414,7 @@ describe "API" do
 
       Sidekiq.redis do |conn|
         refute conn.smembers("queues").include?("foo")
-        refute conn.exists?("queue:foo")
+        refute(conn.exists("queue:foo") > 0)
       end
     end
 
diff --git a/test/web.rb b/test/web.rb
index 00aac627..e3cf7850 100644
--- a/test/web.rb
+++ b/test/web.rb
@@ -163,7 +163,7 @@ describe Sidekiq::Web do
 
     @config.redis do |conn|
       refute conn.smembers("queues").include?("foo")
-      refute conn.exists?("queue:foo")
+      refute(conn.exists("queue:foo") > 0)
     end
   end