diff --git a/libsql-hrana-codec/pom.xml b/libsql-hrana-codec/pom.xml
index eee2838..0ebb414 100644
--- a/libsql-hrana-codec/pom.xml
+++ b/libsql-hrana-codec/pom.xml
@@ -14,7 +14,7 @@
     <description>Hrana v3 protocol models, JSON streaming codec, and protobuf schemas</description>
 
     <properties>
-        <protobuf.version>3.25.5</protobuf.version>
+        <protobuf.version>4.36.1</protobuf.version>
     </properties>
 
     <dependencies>
diff --git a/pom.xml b/pom.xml
index e5d15a5..35a2469 100644
--- a/pom.xml
+++ b/pom.xml
@@ -44,7 +44,7 @@
         <assertj.version>3.27.7</assertj.version>
         <testcontainers.version>1.21.4</testcontainers.version>
         <hikaricp.version>6.2.1</hikaricp.version>
-        <protobuf.version>3.25.5</protobuf.version>
+        <protobuf.version>4.36.1</protobuf.version>
     </properties>
 
     <dependencyManagement>