diff --git a/CHANGELOG.md b/CHANGELOG.md
index bed7ec7..f4ed27b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 **Changes in version 5.9 (not released yet)**
 
+- Changed format of version for NHIA and NAPIIA and set both values to "20240801" and "20250801" respectively.
 - Added optional behavior and DX year input to the Cause of Death Classification utility methods. This won't affect the corresponding algorithm, which uses the 2008 SEER Site Recode logic.
 
 **Changes in version 5.8**
diff --git a/src/main/java/com/imsweb/algorithms/napiia/NapiiaUtils.java b/src/main/java/com/imsweb/algorithms/napiia/NapiiaUtils.java
index 04bb1e2..e662335 100644
--- a/src/main/java/com/imsweb/algorithms/napiia/NapiiaUtils.java
+++ b/src/main/java/com/imsweb/algorithms/napiia/NapiiaUtils.java
@@ -24,7 +24,7 @@
 public final class NapiiaUtils {
 
     public static final String ALG_NAME = "NAACCR Asian/Pacific Islander Identification Algorithm (NAPIIA)";
-    public static final String ALG_VERSION = "released in August 2025";
+    public static final String ALG_VERSION = "20250801";
 
     public static final String REASON_1_3_3 = "More than one race 04-32 and one race 96 or 97 (step 1.3.3).";
     public static final String REASON_1_3_5 = "One or more races 02-03 and one race 96 (step 1.3.5).";
diff --git a/src/main/java/com/imsweb/algorithms/nhia/NhiaUtils.java b/src/main/java/com/imsweb/algorithms/nhia/NhiaUtils.java
index 5823436..a1f2836 100644
--- a/src/main/java/com/imsweb/algorithms/nhia/NhiaUtils.java
+++ b/src/main/java/com/imsweb/algorithms/nhia/NhiaUtils.java
@@ -25,7 +25,7 @@
 public final class NhiaUtils {
 
     public static final String ALG_NAME = "NAACCR Hispanic Identification Algorithm (NHIA)";
-    public static final String ALG_VERSION = "released in August 2024";
+    public static final String ALG_VERSION = "20240801";
 
     public static final String NHIA_NON_HISPANIC = "0";
     public static final String NHIA_MEXICAN = "1";