diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 0a1adc3..ed694ef 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -25,12 +25,12 @@ jobs:
             os: ubuntu-latest
             arch: x64
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
           arch: ${{ matrix.arch }}
-      - uses: actions/cache@v1
+      - uses: actions/cache@v4
         env:
           cache-name: cache-artifacts
         with:
diff --git a/Project.toml b/Project.toml
index 9ee33c9..d03ffae 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "JobQueueMPI"
 uuid = "32d208e1-246e-420c-b6ff-18b71b410923"
 authors = ["pedroripper <pedros.ripper@gmail.com>"]
-version = "0.1.1"
+version = "0.1.2"
 
 [deps]
 MPI = "da04e1cc-30fd-572f-bb4f-1f8673147195"
diff --git a/src/JobQueueMPI.jl b/src/JobQueueMPI.jl
index 0caf7c6..0325a86 100644
--- a/src/JobQueueMPI.jl
+++ b/src/JobQueueMPI.jl
@@ -2,6 +2,7 @@ module JobQueueMPI
 
 using MPI
 
+include("debug_utils.jl")
 include("mpi_utils.jl")
 include("job.jl")
 include("worker.jl")
diff --git a/src/controller.jl b/src/controller.jl
index 81f676a..94cb36b 100644
--- a/src/controller.jl
+++ b/src/controller.jl
@@ -80,6 +80,9 @@ function send_jobs_to_any_available_workers(controller::Controller)
             job = _pick_job_to_send!(controller)
             controller.worker_status[worker] = WORKER_BUSY
             request = MPI.isend(job, _mpi_comm(); dest = worker, tag = worker + 32)
+            if _is_debug_enabled()
+                _debug_message("Sending job $(job.id) to worker $worker")
+            end
             push!(controller.pending_jobs, JobRequest(worker, request))
         end
     end
@@ -96,9 +99,16 @@ function send_termination_message()
     for worker in 1:num_workers()
         request =
             MPI.isend(Job(0, TerminationMessage()), _mpi_comm(); dest = worker, tag = worker + 32)
+        if _is_debug_enabled()
+            _debug_message("Sending Termination message job to worker $worker")
+        end
         push!(requests, JobRequest(worker, request))
     end
-    return _wait_all(requests)
+    if _is_debug_enabled()
+        _debug_message("Waiting for termination messsages to be received.")
+    end
+    _wait_all(requests)
+    return nothing
 end
 
 """
@@ -122,6 +132,11 @@ function check_for_job_answers(controller::Controller)
                 source = controller.pending_jobs[j_i].worker,
                 tag = controller.pending_jobs[j_i].worker + 32,
             )
+            if _is_debug_enabled()
+                _debug_message(
+                    "completed job $(job_answer.job_id)",
+                )
+            end
             controller.worker_status[controller.pending_jobs[j_i].worker] = WORKER_AVAILABLE
             deleteat!(controller.pending_jobs, j_i)
             return job_answer
diff --git a/src/debug_utils.jl b/src/debug_utils.jl
new file mode 100644
index 0000000..8a84b11
--- /dev/null
+++ b/src/debug_utils.jl
@@ -0,0 +1,26 @@
+const DEBUG_MODE = Ref{Bool}(false)
+
+function enable_debug_messages()
+    return DEBUG_MODE[] = true
+end
+
+function disable_debug_messages()
+    return DEBUG_MODE[] = false
+end
+
+function _is_debug_enabled()
+    return DEBUG_MODE[]
+end
+
+function _debug_message(message)
+    if is_controller_process()
+        open("controller_job_queue_mpi.log", "a") do io
+            return println(io, "DEBUG (controller): ", message)
+        end
+    else
+        worker_rank = my_rank()
+        open("worker_rank_$(worker_rank)_job_queue_mpi.log", "a") do io
+            return println(io, "DEBUG (worker $worker_rank): ", message)
+        end
+    end
+end
diff --git a/src/worker.jl b/src/worker.jl
index 941fffb..1d03c0f 100644
--- a/src/worker.jl
+++ b/src/worker.jl
@@ -28,7 +28,11 @@ function send_job_answer_to_controller(worker::Worker, message)
         error("Only the controller process can send job answers.")
     end
     job = JobAnswer(worker.job_id_running, message)
-    return MPI.isend(job, _mpi_comm(); dest = controller_rank(), tag = worker.rank + 32)
+    MPI.isend(job, _mpi_comm(); dest = controller_rank(), tag = worker.rank + 32)
+    if _is_debug_enabled()
+        _debug_message("Sending job answer $(job.job_id) to controller")
+    end
+    return nothing
 end
 
 """
@@ -41,6 +45,9 @@ function receive_job(worker::Worker)
         error("Only the controller process can receive jobs.")
     end
     job = MPI.recv(_mpi_comm(); source = controller_rank(), tag = worker.rank + 32)
+    if _is_debug_enabled()
+        _debug_message("Received job $(job.id)")
+    end
     worker.job_id_running = job.id
     return job
 end
diff --git a/test/test_1.jl b/test/test_1.jl
index a26d8c9..76fe73b 100644
--- a/test/test_1.jl
+++ b/test/test_1.jl
@@ -7,6 +7,8 @@ mutable struct Message
     vector_idx::Int
 end
 
+JQM.enable_debug_messages()
+
 all_jobs_done(controller) = JQM.is_job_queue_empty(controller) && !JQM.any_pending_jobs(controller)
 
 function sum_100(message::Message)