diff --git a/powerauth-java-http/src/main/java/io/getlime/security/powerauth/http/validator/PowerAuthSignatureHttpHeaderValidator.java b/powerauth-java-http/src/main/java/io/getlime/security/powerauth/http/validator/PowerAuthSignatureHttpHeaderValidator.java
index 6f05be557..503d6ea9f 100644
--- a/powerauth-java-http/src/main/java/io/getlime/security/powerauth/http/validator/PowerAuthSignatureHttpHeaderValidator.java
+++ b/powerauth-java-http/src/main/java/io/getlime/security/powerauth/http/validator/PowerAuthSignatureHttpHeaderValidator.java
@@ -95,12 +95,12 @@ public static void validate(PowerAuthSignatureHttpHeader header) throws InvalidP
         // Check that version is present
         final String version = header.getVersion();
         if (version == null || version.isEmpty()) {
-            throw new InvalidPowerAuthHttpHeaderException("POWER_AUTH_ENCRYPTION_VERSION_EMPTY");
+            throw new InvalidPowerAuthHttpHeaderException("POWER_AUTH_SIGNATURE_VERSION_EMPTY");
         }
 
         // Check that version is correct
         if (!ValueTypeValidator.isValidProtocolVersion(version)) {
-            throw new InvalidPowerAuthHttpHeaderException("POWER_AUTH_ENCRYPTION_VERSION_INVALID");
+            throw new InvalidPowerAuthHttpHeaderException("POWER_AUTH_SIGNATURE_VERSION_INVALID");
         }
 
     }
diff --git a/powerauth-java-http/src/main/java/io/getlime/security/powerauth/http/validator/PowerAuthTokenHttpHeaderValidator.java b/powerauth-java-http/src/main/java/io/getlime/security/powerauth/http/validator/PowerAuthTokenHttpHeaderValidator.java
index 322945e1d..7ec285807 100644
--- a/powerauth-java-http/src/main/java/io/getlime/security/powerauth/http/validator/PowerAuthTokenHttpHeaderValidator.java
+++ b/powerauth-java-http/src/main/java/io/getlime/security/powerauth/http/validator/PowerAuthTokenHttpHeaderValidator.java
@@ -84,12 +84,12 @@ public static void validate(PowerAuthTokenHttpHeader header) throws InvalidPower
         // Check that version is present
         final String version = header.getVersion();
         if (version == null || version.isEmpty()) {
-            throw new InvalidPowerAuthHttpHeaderException("POWER_AUTH_ENCRYPTION_VERSION_EMPTY");
+            throw new InvalidPowerAuthHttpHeaderException("POWER_AUTH_TOKEN_VERSION_EMPTY");
         }
 
         // Check that version is correct
         if (!ValueTypeValidator.isValidProtocolVersion(version)) {
-            throw new InvalidPowerAuthHttpHeaderException("POWER_AUTH_ENCRYPTION_VERSION_INVALID");
+            throw new InvalidPowerAuthHttpHeaderException("POWER_AUTH_TOKEN_VERSION_INVALID");
         }
 
     }