diff --git a/CHANGELOG.md b/CHANGELOG.md
index 728c3b12..0f7b4296 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ This file only reflects the changes that are made in this image.
 Please refer to the [Salt 3004 Release Notes](https://docs.saltstack.com/en/latest/topics/releases/3004.html)
 for the list of changes in SaltStack.
 
+**3004_5**
+
+- Set the number of workers for the runner/wheel in the reactor by setting `SALT_REACTOR_WORKER_THREADS` env variable.
+
 **3004_4**
 
 - Fix an issue restarting `salt-master` processes with `supervisorctl` when reloading config.
diff --git a/Dockerfile b/Dockerfile
index d5c46181..98e23800 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,7 +7,7 @@ ARG VCS_REF
 ENV SALT_VERSION="3004" \
     PYTHON_VERSION="3.9"
 
-ENV IMAGE_VERSION="${SALT_VERSION}_4"
+ENV IMAGE_VERSION="${SALT_VERSION}_5"
 
 ENV SALT_DOCKER_DIR="/etc/docker-salt" \
     SALT_ROOT_DIR="/etc/salt" \
diff --git a/README.md b/README.md
index 2e73a6e9..7112df0b 100644
--- a/README.md
+++ b/README.md
@@ -525,7 +525,8 @@ Below you can find a list with the available options that can be used to customi
 | `SALT_MASTER_PUBKEY_SIGNATURE`         | The name of the file in the master's pki-directory that holds the pre-calculated signature of the master's public-key. Default: `master_pubkey_signature`                                                                  |
 | `SALT_MASTER_ROOT_USER`                | Forces `salt-master` to be runned as `root` instead of `salt`. Default: `False`                                                                                                                                            |
 | `SALT_GITFS_SSH_PRIVATE_KEY`           | The name of the ssh private key for gitfs. Default: `gitfs_ssh`                                                                                                                                                            |
-| `SALT_GITFS_SSH_PUBLIC_KEY`            | The name of the ssh public key for gitfs. Default: `gitfs_ssh.pub`                                                                                                                                                         |
+| `SALT_GITFS_SSH_PUBLIC_KEY`            | The name of the ssh public key for gitfs. Default: `gitfs_ssh`.pub`                                                                                                                                                        |
+| `SALT_REACTOR_WORKER_THREADS`          | The number of workers for the runner/wheel in the reactor. Default: `10`.                                                                                                                                                  |
 | `PUID`                                 | Sets the uid for user `salt` to the specified uid. Default: `1000`.                                                                                                                                                        |
 | `PGID`                                 | Sets the gid for user `salt` to the specified gid. Default: `1000`.                                                                                                                                                        |
 | `USERMAP_UID` (**deprecated**)         | Same as `PUID`. Support will be removed in Salt 3005 release in favor of `PUID`.                                                                                                                                           |
diff --git a/assets/runtime/config/master.yml b/assets/runtime/config/master.yml
index 63acfb16..4ab032ec 100644
--- a/assets/runtime/config/master.yml
+++ b/assets/runtime/config/master.yml
@@ -85,6 +85,12 @@ pillar_roots:
     - {{SALT_BASE_DIR}}/pillar
 
 
+######        Reactor Settings        #####
+###########################################
+# Configure the number of workers for the runner/wheel in the reactor.
+reactor_worker_threads: {{SALT_REACTOR_WORKER_THREADS}}
+
+
 #####          Syndic settings       #####
 ##########################################
 # The Salt syndic is used to pass commands through a master from a higher
diff --git a/assets/runtime/env-defaults.sh b/assets/runtime/env-defaults.sh
index 5ad82357..91c2352e 100755
--- a/assets/runtime/env-defaults.sh
+++ b/assets/runtime/env-defaults.sh
@@ -12,6 +12,7 @@ SALT_LOG_ROTATE_RETENTION=${SALT_LOG_ROTATE_RETENTION:-52}
 
 # https://docs.saltstack.com/en/latest/ref/configuration/master.html
 SALT_RESTART_MASTER_ON_CONFIG_CHANGE=${SALT_RESTART_MASTER_ON_CONFIG_CHANGE:-false}
+SALT_REACTOR_WORKER_THREADS=${SALT_REACTOR_WORKER_THREADS:-10}
 
 #####         Logging settings       #####
 # https://docs.saltstack.com/en/latest/ref/configuration/master.html#master-logging-settings
diff --git a/assets/runtime/functions.sh b/assets/runtime/functions.sh
index 005ebff3..56cd3a29 100755
--- a/assets/runtime/functions.sh
+++ b/assets/runtime/functions.sh
@@ -268,7 +268,8 @@ function configure_salt_master()
     SALT_BASE_DIR \
     SALT_CACHE_DIR \
     SALT_CONFS_DIR \
-    SALT_KEYS_DIR
+    SALT_KEYS_DIR \
+    SALT_REACTOR_WORKER_THREADS
 
   # Update keys configuration
   update_template "${SALT_ROOT_DIR}/master" \