diff --git a/jOOQ/src/main/java/org/jooq/util/postgres/PGInterval.java b/jOOQ/src/main/java/org/jooq/util/postgres/PGInterval.java
index d6c21b4d86..fdfb9bb42b 100644
--- a/jOOQ/src/main/java/org/jooq/util/postgres/PGInterval.java
+++ b/jOOQ/src/main/java/org/jooq/util/postgres/PGInterval.java
@@ -95,13 +95,12 @@ public class PGInterval extends PGobject {
       for (int i = 0; i < timeValue.length(); i++) {
         int lookAhead = lookAhead(timeValue, i, "HMS");
         if (lookAhead > 0) {
-          number = Integer.parseInt(timeValue.substring(i, lookAhead));
           if (timeValue.charAt(lookAhead) == 'H') {
-            setHours(number);
+            setHours(Integer.parseInt(timeValue.substring(i, lookAhead)));
           } else if (timeValue.charAt(lookAhead) == 'M') {
-            setMinutes(number);
+            setMinutes(Integer.parseInt(timeValue.substring(i, lookAhead)));
           } else if (timeValue.charAt(lookAhead) == 'S') {
-            setSeconds(number);
+            setSeconds(Double.parseDouble(timeValue.substring(i, lookAhead)));
           }
           i = lookAhead;
         }
diff --git a/pom.xml b/pom.xml
index 0f954af9e9..8f35abc44e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -27,7 +27,7 @@
         <hsqldb.version>2.7.1</hsqldb.version>
 
         <!-- JDBC drivers for jOOQ-xyz-extensions modules and vendor-specific API access -->
-        <postgres.version>42.5.3</postgres.version>
+        <postgres.version>42.5.4</postgres.version>
         <sqlserver.version>11.2.1.jre11</sqlserver.version>
         <oracle.version>21.7.0.0</oracle.version>