diff --git a/README.fr.md b/README.fr.md
index 01e4c1a..bba2b5d 100644
--- a/README.fr.md
+++ b/README.fr.md
@@ -23,7 +23,7 @@ Connecting to /var/run/postgresql:5432 database template1 with user postgres...
 [INFO]    Currently used I/O scheduler(s): mq-deadline
 =====  General instance informations  =====
 -----  Version  -----
-[OK]      You are using the latest major version (11.5 (Debian 11.5-1+deb10u1)) of PostreSQL
+[OK]      You are using the latest major version (11.5 (Debian 11.5-1+deb10u1)) of PostgreSQL
 -----  Uptime  -----
 [INFO]    Service uptime:  01h 41m 13s
 [WARN]    Uptime less than 1 day.  My report may be inaccurate
@@ -201,7 +201,7 @@ Le script ne détecte pas toujours parfaitement l'éventuel hyperviseur ou le st
 ```
 --ssd
 ```
-Indique que le stockage employé par PostreSQL est SSD.  Utile si PostgreSQL est dans une VM, car je ne peux en ce cas déterminer le type de stockage physique employé.
+Indique que le stockage employé par PostgreSQL est SSD.  Utile si PostgreSQL est dans une VM, car je ne peux en ce cas déterminer le type de stockage physique employé.
 
 - Couleur
 
diff --git a/README.md b/README.md
index a35d4eb..d57d9e4 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ Connecting to /var/run/postgresql:5432 database template1 with user postgres...
 [INFO]    Currently used I/O scheduler(s): mq-deadline
 =====  General instance informations  =====
 -----  Version  -----
-[OK]      You are using the latest major version (11.5 (Debian 11.5-1+deb10u1)) of PostreSQL
+[OK]      You are using the latest major version (11.5 (Debian 11.5-1+deb10u1)) of PostgreSQL
 -----  Uptime  -----
 [INFO]    Service uptime:  01h 41m 13s
 [WARN]    Uptime less than 1 day.  My report may be inaccurate
diff --git a/postgresqltuner.pl b/postgresqltuner.pl
index 75dd983..d0df141 100755
--- a/postgresqltuner.pl
+++ b/postgresqltuner.pl
@@ -441,13 +441,13 @@ sub usage {
   print_header_2("PostgreSQL version");
   my $version=get_nonvolatile_setting('server_version');
   if ($version=~/(devel|rc|beta)/) {
-    print_report_bad("You are using PostreSQL version $version which is a Development Snapshot, Beta or Release Candidate");
+    print_report_bad("You are using PostgreSQL version $version which is a Development Snapshot, Beta or Release Candidate");
     add_advice("version","high","If this instance is a production server, then only use stable versions");
   }
   my $pg_upgrade="Upgrade to the latest stable PostgreSQL version";
   my $pg_supportdates="Check https://www.postgresql.org/support/versioning/ for upstream support dates";
   if (min_version('13.0')) {
-    print_report_ok("You are using the latest PostreSQL major version ($version)");
+    print_report_ok("You are using the latest PostgreSQL major version ($version)");
   } elsif (min_version('12.0')) {
     print_report_ok($pg_upgrade);
     add_advice("version","low",$pg_upgrade);
@@ -463,11 +463,11 @@ sub usage {
     add_advice("version","medium",$pg_upgrade);
     add_advice("version","medium",$pg_supportdates);
   } elsif (min_version('8.1')) {
-    print_report_bad("You are using PostreSQL version $version, which is unsupported upstream");
+    print_report_bad("You are using PostgreSQL version $version, which is unsupported upstream");
     add_advice("version","high",$pg_upgrade);
     add_advice("version","high",$pg_supportdates);
   } else {
-    print_report_bad("You are using PostreSQL version $version, which is very old and not supported by this script");
+    print_report_bad("You are using PostgreSQL version $version, which is very old and not supported by this script");
     add_advice("version","high",$pg_upgrade);
   }
 }