diff --git a/CHANGELOG.md b/CHANGELOG.md
index c9af60e5..b0ebb039 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,6 +22,9 @@ CHANGELOG
 * **BREAKING:** Java 11 support has been dropped. Java 17 or later is now required.
 * **BREAKING:** Removed explicit `serialVersionUID` from all exception classes.
   Java will auto-generate serialVersionUID when needed, following modern practices.
+* **BREAKING:** Removed no longer necessary `JacksonInject` annotations for
+  `ip_address`, `network`, and `traits` from several classes. The
+  `JsonInjector` class was removed.
 
 4.4.0 (2025-08-28)
 ------------------
diff --git a/src/main/java/com/maxmind/geoip2/JsonInjector.java b/src/main/java/com/maxmind/geoip2/JsonInjector.java
deleted file mode 100644
index 21067339..00000000
--- a/src/main/java/com/maxmind/geoip2/JsonInjector.java
+++ /dev/null
@@ -1,38 +0,0 @@
-package com.maxmind.geoip2;
-
-import com.fasterxml.jackson.databind.BeanProperty;
-import com.fasterxml.jackson.databind.DeserializationContext;
-import com.fasterxml.jackson.databind.InjectableValues;
-import com.maxmind.db.Network;
-import com.maxmind.geoip2.record.Traits;
-import java.util.List;
-
-class JsonInjector extends InjectableValues {
-    private final List<String> locales;
-    private final String ip;
-    private final Network network;
-
-    public JsonInjector(List<String> locales, String ip, Network network) {
-        this.locales = locales;
-        this.ip = ip;
-        this.network = network;
-    }
-
-    @Override
-    public Object findInjectableValue(Object valueId, DeserializationContext ctxt,
-                                      BeanProperty forProperty, Object beanInstance) {
-        if ("locales".equals(valueId)) {
-            return locales;
-        }
-        if ("ip_address".equals(valueId)) {
-            return ip;
-        }
-        if ("network".equals(valueId)) {
-            return network;
-        }
-        if ("traits".equals(valueId)) {
-            return new Traits(ip, network);
-        }
-        return null;
-    }
-}
\ No newline at end of file
diff --git a/src/main/java/com/maxmind/geoip2/WebServiceClient.java b/src/main/java/com/maxmind/geoip2/WebServiceClient.java
index 02a31f94..2e653201 100644
--- a/src/main/java/com/maxmind/geoip2/WebServiceClient.java
+++ b/src/main/java/com/maxmind/geoip2/WebServiceClient.java
@@ -397,7 +397,8 @@ private <T> T handleResponse(HttpResponse<InputStream> response, Class<T> cls)
                 + status + ") for " + uri, status, uri);
         }
 
-        InjectableValues inject = new JsonInjector(locales, null, null);
+        InjectableValues inject = new InjectableValues.Std()
+            .addValue("locales", locales);
 
         try {
             return mapper.readerFor(cls).with(inject).readValue(response.body());
diff --git a/src/main/java/com/maxmind/geoip2/model/AnonymousIpResponse.java b/src/main/java/com/maxmind/geoip2/model/AnonymousIpResponse.java
index eaeb0c87..923023b9 100644
--- a/src/main/java/com/maxmind/geoip2/model/AnonymousIpResponse.java
+++ b/src/main/java/com/maxmind/geoip2/model/AnonymousIpResponse.java
@@ -26,14 +26,14 @@ public class AnonymousIpResponse extends IpBaseResponse {
      * @param network            the network associated with the record
      */
     public AnonymousIpResponse(
-        @JacksonInject("ip_address") @JsonProperty("ip_address") String ipAddress,
+        @JsonProperty("ip_address") String ipAddress,
         @JsonProperty("is_anonymous") boolean isAnonymous,
         @JsonProperty("is_anonymous_vpn") boolean isAnonymousVpn,
         @JsonProperty("is_hosting_provider") boolean isHostingProvider,
         @JsonProperty("is_public_proxy") boolean isPublicProxy,
         @JsonProperty("is_residential_proxy") boolean isResidentialProxy,
         @JsonProperty("is_tor_exit_node") boolean isTorExitNode,
-        @JacksonInject("network") @JsonProperty("network")
+        @JsonProperty("network")
         @JsonDeserialize(using = NetworkDeserializer.class) Network network
     ) {
         super(ipAddress, isAnonymous, isAnonymousVpn, isHostingProvider, isPublicProxy,
diff --git a/src/main/java/com/maxmind/geoip2/model/AnonymousPlusResponse.java b/src/main/java/com/maxmind/geoip2/model/AnonymousPlusResponse.java
index 7397c36a..169d1e2a 100644
--- a/src/main/java/com/maxmind/geoip2/model/AnonymousPlusResponse.java
+++ b/src/main/java/com/maxmind/geoip2/model/AnonymousPlusResponse.java
@@ -34,14 +34,14 @@ public class AnonymousPlusResponse extends AnonymousIpResponse {
      */
     public AnonymousPlusResponse(
         @JsonProperty("anonymizer_confidence") Integer anonymizerConfidence,
-        @JacksonInject("ip_address") @JsonProperty("ip_address") String ipAddress,
+        @JsonProperty("ip_address") String ipAddress,
         @JsonProperty("is_anonymous") Boolean isAnonymous,
         @JsonProperty("is_anonymous_vpn") Boolean isAnonymousVpn,
         @JsonProperty("is_hosting_provider") Boolean isHostingProvider,
         @JsonProperty("is_public_proxy") Boolean isPublicProxy,
         @JsonProperty("is_residential_proxy") Boolean isResidentialProxy,
         @JsonProperty("is_tor_exit_node") Boolean isTorExitNode,
-        @JacksonInject("network") @JsonDeserialize(using = NetworkDeserializer.class)
+        @JsonDeserialize(using = NetworkDeserializer.class)
         @JsonProperty("network") Network network,
         @JsonProperty("network_last_seen") LocalDate networkLastSeen,
         @JsonProperty("provider_name") String providerName
diff --git a/src/main/java/com/maxmind/geoip2/model/AsnResponse.java b/src/main/java/com/maxmind/geoip2/model/AsnResponse.java
index 76ae7ecf..a33717d2 100644
--- a/src/main/java/com/maxmind/geoip2/model/AsnResponse.java
+++ b/src/main/java/com/maxmind/geoip2/model/AsnResponse.java
@@ -37,9 +37,9 @@ public AsnResponse(
         @JsonProperty("autonomous_system_organization")
         @MaxMindDbParameter(name = "autonomous_system_organization")
         String autonomousSystemOrganization,
-        @JacksonInject("ip_address") @JsonProperty("ip_address")
+        @JsonProperty("ip_address")
         @MaxMindDbParameter(name = "ip_address") String ipAddress,
-        @JacksonInject("network") @JsonProperty("network")
+        @JsonProperty("network")
         @JsonDeserialize(using = NetworkDeserializer.class) @MaxMindDbParameter(name = "network")
         Network network
     ) {
diff --git a/src/main/java/com/maxmind/geoip2/model/CityResponse.java b/src/main/java/com/maxmind/geoip2/model/CityResponse.java
index e6aca28e..a9e64f65 100644
--- a/src/main/java/com/maxmind/geoip2/model/CityResponse.java
+++ b/src/main/java/com/maxmind/geoip2/model/CityResponse.java
@@ -53,7 +53,7 @@ public CityResponse(
         RepresentedCountry representedCountry,
         @JsonProperty("subdivisions") @MaxMindDbParameter(name = "subdivisions")
         ArrayList<Subdivision> subdivisions,
-        @JacksonInject("traits") @JsonProperty("traits") @MaxMindDbParameter(name = "traits")
+        @JsonProperty("traits") @MaxMindDbParameter(name = "traits")
         Traits traits
     ) {
         super(city, continent, country, location, maxmind, postal, registeredCountry,
diff --git a/src/main/java/com/maxmind/geoip2/model/ConnectionTypeResponse.java b/src/main/java/com/maxmind/geoip2/model/ConnectionTypeResponse.java
index 58b65fe7..06c956f7 100644
--- a/src/main/java/com/maxmind/geoip2/model/ConnectionTypeResponse.java
+++ b/src/main/java/com/maxmind/geoip2/model/ConnectionTypeResponse.java
@@ -79,8 +79,8 @@ public static ConnectionType fromString(String s) {
      */
     public ConnectionTypeResponse(
         @JsonProperty("connection_type") ConnectionType connectionType,
-        @JacksonInject("ip_address") @JsonProperty("ip_address") String ipAddress,
-        @JacksonInject("network") @JsonProperty("network")
+        @JsonProperty("ip_address") String ipAddress,
+        @JsonProperty("network")
         @JsonDeserialize(using = NetworkDeserializer.class) Network network
     ) {
         this.connectionType = connectionType;
diff --git a/src/main/java/com/maxmind/geoip2/model/CountryResponse.java b/src/main/java/com/maxmind/geoip2/model/CountryResponse.java
index 648a89f3..364c9bc6 100644
--- a/src/main/java/com/maxmind/geoip2/model/CountryResponse.java
+++ b/src/main/java/com/maxmind/geoip2/model/CountryResponse.java
@@ -40,7 +40,7 @@ public CountryResponse(
         Country registeredCountry,
         @JsonProperty("represented_country") @MaxMindDbParameter(name = "represented_country")
         RepresentedCountry representedCountry,
-        @JacksonInject("traits") @JsonProperty("traits") @MaxMindDbParameter(name = "traits")
+        @JsonProperty("traits") @MaxMindDbParameter(name = "traits")
         Traits traits
     ) {
         super(continent, country, maxmind, registeredCountry, representedCountry, traits);
diff --git a/src/main/java/com/maxmind/geoip2/model/DomainResponse.java b/src/main/java/com/maxmind/geoip2/model/DomainResponse.java
index ef0aba8a..81b12987 100644
--- a/src/main/java/com/maxmind/geoip2/model/DomainResponse.java
+++ b/src/main/java/com/maxmind/geoip2/model/DomainResponse.java
@@ -29,9 +29,9 @@ public class DomainResponse extends AbstractResponse {
     @MaxMindDbConstructor
     public DomainResponse(
         @JsonProperty("domain") @MaxMindDbParameter(name = "domain") String domain,
-        @JacksonInject("ip_address") @JsonProperty("ip_address")
+        @JsonProperty("ip_address")
         @MaxMindDbParameter(name = "ip_address") String ipAddress,
-        @JacksonInject("network") @JsonProperty("network")
+        @JsonProperty("network")
         @JsonDeserialize(using = NetworkDeserializer.class) @MaxMindDbParameter(name = "network")
         Network network
     ) {
diff --git a/src/main/java/com/maxmind/geoip2/model/EnterpriseResponse.java b/src/main/java/com/maxmind/geoip2/model/EnterpriseResponse.java
index ca9e7807..700c025f 100644
--- a/src/main/java/com/maxmind/geoip2/model/EnterpriseResponse.java
+++ b/src/main/java/com/maxmind/geoip2/model/EnterpriseResponse.java
@@ -53,7 +53,7 @@ public EnterpriseResponse(
         RepresentedCountry representedCountry,
         @JsonProperty("subdivisions") @MaxMindDbParameter(name = "subdivisions")
         ArrayList<Subdivision> subdivisions,
-        @JacksonInject("traits") @JsonProperty("traits") @MaxMindDbParameter(name = "traits")
+        @JsonProperty("traits") @MaxMindDbParameter(name = "traits")
         Traits traits
     ) {
         super(city, continent, country, location, maxmind, postal, registeredCountry,
diff --git a/src/main/java/com/maxmind/geoip2/model/InsightsResponse.java b/src/main/java/com/maxmind/geoip2/model/InsightsResponse.java
index a7d602d5..b96bceb7 100644
--- a/src/main/java/com/maxmind/geoip2/model/InsightsResponse.java
+++ b/src/main/java/com/maxmind/geoip2/model/InsightsResponse.java
@@ -45,7 +45,7 @@ public InsightsResponse(
         @JsonProperty("registered_country") Country registeredCountry,
         @JsonProperty("represented_country") RepresentedCountry representedCountry,
         @JsonProperty("subdivisions") List<Subdivision> subdivisions,
-        @JacksonInject("traits") @JsonProperty("traits") Traits traits
+        @JsonProperty("traits") Traits traits
     ) {
         super(city, continent, country, location, maxmind, postal, registeredCountry,
             representedCountry, subdivisions, traits);
diff --git a/src/main/java/com/maxmind/geoip2/model/IpRiskResponse.java b/src/main/java/com/maxmind/geoip2/model/IpRiskResponse.java
index f48a2bb4..4d66c694 100644
--- a/src/main/java/com/maxmind/geoip2/model/IpRiskResponse.java
+++ b/src/main/java/com/maxmind/geoip2/model/IpRiskResponse.java
@@ -30,14 +30,14 @@ public class IpRiskResponse extends IpBaseResponse {
      * @param ipRisk             the IP risk of a model
      */
     public IpRiskResponse(
-        @JacksonInject("ip_address") @JsonProperty("ip_address") String ipAddress,
+        @JsonProperty("ip_address") String ipAddress,
         @JsonProperty("is_anonymous") boolean isAnonymous,
         @JsonProperty("is_anonymous_vpn") boolean isAnonymousVpn,
         @JsonProperty("is_hosting_provider") boolean isHostingProvider,
         @JsonProperty("is_public_proxy") boolean isPublicProxy,
         @JsonProperty("is_residential_proxy") boolean isResidentialProxy,
         @JsonProperty("is_tor_exit_node") boolean isTorExitNode,
-        @JacksonInject("network") @JsonProperty("network")
+        @JsonProperty("network")
         @JsonDeserialize(using = NetworkDeserializer.class) Network network,
         @JsonProperty("ip_risk") double ipRisk
     ) {
diff --git a/src/main/java/com/maxmind/geoip2/model/IspResponse.java b/src/main/java/com/maxmind/geoip2/model/IspResponse.java
index e12a9c1c..3bc9f2d5 100644
--- a/src/main/java/com/maxmind/geoip2/model/IspResponse.java
+++ b/src/main/java/com/maxmind/geoip2/model/IspResponse.java
@@ -40,7 +40,7 @@ public IspResponse(
         @JsonProperty("autonomous_system_organization")
         @MaxMindDbParameter(name = "autonomous_system_organization")
         String autonomousSystemOrganization,
-        @JacksonInject("ip_address") @JsonProperty("ip_address")
+        @JsonProperty("ip_address")
         @MaxMindDbParameter(name = "ip_address") String ipAddress,
         @JsonProperty("isp") @MaxMindDbParameter(name = "isp") String isp,
         @JsonProperty("mobile_country_code") @MaxMindDbParameter(name = "mobile_country_code")
@@ -49,7 +49,7 @@ public IspResponse(
         String mobileNetworkCode,
         @JsonProperty("organization") @MaxMindDbParameter(name = "organization")
         String organization,
-        @JacksonInject("network") @JsonProperty("network")
+        @JsonProperty("network")
         @JsonDeserialize(using = NetworkDeserializer.class) @MaxMindDbParameter(name = "network")
         Network network
     ) {
diff --git a/src/main/java/com/maxmind/geoip2/record/Traits.java b/src/main/java/com/maxmind/geoip2/record/Traits.java
index 2b816cd8..0330fcdf 100644
--- a/src/main/java/com/maxmind/geoip2/record/Traits.java
+++ b/src/main/java/com/maxmind/geoip2/record/Traits.java
@@ -91,7 +91,7 @@ public Traits(
         @JsonProperty("autonomous_system_organization") String autonomousSystemOrganization,
         @JsonProperty("connection_type") ConnectionType connectionType,
         @JsonProperty("domain") String domain,
-        @JacksonInject("ip_address") @JsonProperty("ip_address") String ipAddress,
+        @JsonProperty("ip_address") String ipAddress,
         @JsonProperty("is_anonymous") boolean isAnonymous,
         @JsonProperty("is_anonymous_vpn") boolean isAnonymousVpn,
         @JsonProperty("is_anycast") boolean isAnycast,
@@ -103,7 +103,7 @@ public Traits(
         @JsonProperty("isp") String isp,
         @JsonProperty("mobile_country_code") String mobileCountryCode,
         @JsonProperty("mobile_network_code") String mobileNetworkCode,
-        @JacksonInject("network") @JsonProperty("network")
+        @JsonProperty("network")
         @JsonDeserialize(using = NetworkDeserializer.class) Network network,
         @JsonProperty("organization") String organization,
         @JsonProperty("user_type") String userType,