diff --git a/config.template.yml b/config.template.yml
index c1efb2d4e..4d15f6096 100644
--- a/config.template.yml
+++ b/config.template.yml
@@ -205,11 +205,11 @@ session:
   # The secret to encrypt the session cookie.
   secret: unsecure_session_secret
 
-  # The time in ms before the cookie expires and session is reset.
-  expiration: 3600000 # 1 hour
+  # The time in seconds before the cookie expires and session is reset.
+  expiration: 3600 # 1 hour
 
-  # The inactivity time in ms before the session is reset.
-  inactivity: 300000 # 5 minutes
+  # The inactivity time in seconds before the session is reset.
+  inactivity: 300 # 5 minutes
 
   # The domain to protect.
   # Note: the authenticator must also be in that domain. If empty, the cookie
diff --git a/example/kube/authelia/configs/configuration.yml b/example/kube/authelia/configs/configuration.yml
index 7635cc1ed..e137309e9 100644
--- a/example/kube/authelia/configs/configuration.yml
+++ b/example/kube/authelia/configs/configuration.yml
@@ -75,8 +75,8 @@ access_control:
 
 session:
   secret: unsecure_password
-  expiration: 3600000 # 1 hour
-  inactivity: 300000 # 5 minutes
+  expiration: 3600 # 1 hour
+  inactivity: 300 # 5 minutes
   domain: example.com
   redis:
     host: redis-service
diff --git a/internal/suites/BypassAll/configuration.yml b/internal/suites/BypassAll/configuration.yml
index e5e8af4c2..4fd638e3e 100644
--- a/internal/suites/BypassAll/configuration.yml
+++ b/internal/suites/BypassAll/configuration.yml
@@ -15,8 +15,8 @@ authentication_backend:
 session:
   secret: unsecure_session_secret
   domain: example.com
-  expiration: 3600000 # 1 hour
-  inactivity: 300000 # 5 minutes
+  expiration: 3600 # 1 hour
+  inactivity: 300 # 5 minutes
 
 storage:
   local:
diff --git a/internal/suites/DuoPush/configuration.yml b/internal/suites/DuoPush/configuration.yml
index 19762b4a4..18debd100 100644
--- a/internal/suites/DuoPush/configuration.yml
+++ b/internal/suites/DuoPush/configuration.yml
@@ -15,8 +15,8 @@ authentication_backend:
 session:
   secret: unsecure_session_secret
   domain: example.com
-  expiration: 3600000 # 1 hour
-  inactivity: 300000 # 5 minutes
+  expiration: 3600 # 1 hour
+  inactivity: 300 # 5 minutes
 
 # Configuration of the storage backend used to store data and secrets. i.e. totp data
 storage:
diff --git a/internal/suites/HighAvailability/configuration.yml b/internal/suites/HighAvailability/configuration.yml
index e26e7e34b..a50195c0f 100644
--- a/internal/suites/HighAvailability/configuration.yml
+++ b/internal/suites/HighAvailability/configuration.yml
@@ -185,10 +185,10 @@ session:
   secret: unsecure_session_secret
 
   # The time in ms before the cookie expires and session is reset.
-  expiration: 3600000 # 1 hour
+  expiration: 3600 # 1 hour
 
   # The inactivity time in ms before the session is reset.
-  inactivity: 300000 # 5 minutes
+  inactivity: 300 # 5 minutes
 
   # The domain to protect.
   # Note: the authenticator must also be in that domain. If empty, the cookie
diff --git a/internal/suites/NetworkACL/configuration.yml b/internal/suites/NetworkACL/configuration.yml
index 197e6e5fd..35e67a513 100644
--- a/internal/suites/NetworkACL/configuration.yml
+++ b/internal/suites/NetworkACL/configuration.yml
@@ -15,8 +15,8 @@ authentication_backend:
 session:
   secret: unsecure_session_secret
   domain: example.com
-  expiration: 3600000 # 1 hour
-  inactivity: 300000 # 5 minutes
+  expiration: 3600 # 1 hour
+  inactivity: 300 # 5 minutes
 
 # Configuration of the storage backend used to store data and secrets. i.e. totp data
 storage:
diff --git a/internal/suites/Traefik/configuration.yml b/internal/suites/Traefik/configuration.yml
index 135267b9b..fa6930ea5 100644
--- a/internal/suites/Traefik/configuration.yml
+++ b/internal/suites/Traefik/configuration.yml
@@ -15,8 +15,8 @@ authentication_backend:
 session:
   secret: unsecure_session_secret
   domain: example.com
-  expiration: 3600000 # 1 hour
-  inactivity: 300000 # 5 minutes
+  expiration: 3600 # 1 hour
+  inactivity: 300 # 5 minutes
 
 storage:
   local: