diff --git a/spec/02-integration/04-admin_api/25-max_safe_integer_spec.lua b/spec/02-integration/04-admin_api/25-max_safe_integer_spec.lua
new file mode 100644
index 000000000000..a54ff9452258
--- /dev/null
+++ b/spec/02-integration/04-admin_api/25-max_safe_integer_spec.lua
@@ -0,0 +1,110 @@
+local helpers  = require "spec.helpers"
+
+local LMDB_MAP_SIZE = "10m"
+
+for _, strategy in helpers.each_strategy() do
+  if strategy ~= "off" then
+    describe("Admin API #" .. strategy, function()
+      local bp
+      local client, route
+
+      lazy_setup(function()
+        bp = helpers.get_db_utils(strategy, {
+          "routes",
+          "services",
+        })
+
+        route = bp.routes:insert({
+          paths = { "/route_with_max_safe_integer_priority"},
+          regex_priority = 9007199254740992,
+        })
+
+        assert(helpers.start_kong({
+          database = strategy,
+        }))
+      end)
+
+      lazy_teardown(function()
+        helpers.stop_kong(nil, true)
+      end)
+
+      before_each(function()
+        client = assert(helpers.admin_client())
+      end)
+
+      after_each(function()
+        if client then
+          client:close()
+        end
+      end)
+
+      it("the maximum safe integer can be accurately represented as a decimal number", function()
+        local res = assert(client:send {
+          method = "GET",
+          path   = "/routes/" .. route.id
+        })
+        assert.res_status(200, res)
+        assert.match_re(res:read_body(), "9007199254740992")
+      end)
+    end)
+  end
+
+  if strategy == "off" then
+    describe("Admin API #off", function()
+      local client
+
+      lazy_setup(function()
+        assert(helpers.start_kong({
+          database = "off",
+          lmdb_map_size = LMDB_MAP_SIZE,
+          stream_listen = "127.0.0.1:9011",
+          nginx_conf = "spec/fixtures/custom_nginx.template",
+        }))
+      end)
+
+      lazy_teardown(function()
+        helpers.stop_kong(nil, true)
+      end)
+
+      before_each(function()
+        client = assert(helpers.admin_client())
+      end)
+
+      after_each(function()
+        if client then
+          client:close()
+        end
+      end)
+
+      it("the maximum safe integer can be accurately represented as a decimal number", function()
+        local res = assert(client:send {
+          method = "POST",
+          path = "/config",
+          body = {
+            config = [[
+            _format_version: "1.1"
+            services:
+            - name: my-service
+              id: 0855b320-0dd2-547d-891d-601e9b38647f
+              url: https://localhost
+              routes:
+              - name: my-route
+                id: 481a9539-f49c-51b6-b2e2-fe99ee68866c
+                paths:
+                - /
+                regex_priority: 9007199254740992
+            ]],
+          },
+          headers = {
+            ["Content-Type"] = "application/json"
+          }
+        })
+
+        assert.response(res).has.status(201)
+        local res = client:get("/routes/481a9539-f49c-51b6-b2e2-fe99ee68866c")
+        assert.res_status(200, res)
+        assert.match_re(res:read_body(), "9007199254740992")
+      end)
+    end)
+  end
+end
diff --git a/spec/02-integration/05-proxy/02-router_spec.lua b/spec/02-integration/05-proxy/02-router_spec.lua
index bcd4a008ce87..26ba41a46176 100644
--- a/spec/02-integration/05-proxy/02-router_spec.lua
+++ b/spec/02-integration/05-proxy/02-router_spec.lua
@@ -2486,7 +2486,6 @@ do
   for _, strategy in helpers.each_strategy() do
     describe("Router [#" .. strategy .. ", flavor = " .. flavor .. "]", function()
       local proxy_client
-      local route_with_max_safe_integer_priority
 
       reload_router(flavor)
 
@@ -2521,13 +2520,6 @@ do
           service   = service,
         }
 
-        route_with_max_safe_integer_priority = bp.routes:insert {
-          protocols = { "http" },
-          expression = [[http.path == "/max"]],
-          priority = 9007199254740992,
-          service   = service,
-        }
-
         assert(helpers.start_kong({
           router_flavor = flavor,
           database    = strategy,
@@ -2604,14 +2596,6 @@ do
         assert.res_status(404, res)
       end)
 
-      it("the maximum safe integer can be accurately represented as a decimal number", function()
-        local admin_client = helpers.admin_client()
-
-        local res = admin_client:get("/routes/" .. route_with_max_safe_integer_priority.id)
-        assert.res_status(200, res)
-        assert.match_re(res:read_body(), "9007199254740992")
-      end)
-
     end)
 
   end   -- strategy