diff --git a/include/libeosio/WIF.h b/include/libeosio/WIF.hpp
similarity index 97%
rename from include/libeosio/WIF.h
rename to include/libeosio/WIF.hpp
index 1c7bdfd..e370d2b 100644
--- a/include/libeosio/WIF.h
+++ b/include/libeosio/WIF.hpp
@@ -24,7 +24,7 @@
 #ifndef LIBEOSIO_WIF_H
 #define LIBEOSIO_WIF_H
 
-#include <libeosio/types.h>
+#include <libeosio/types.hpp>
 
 namespace libeosio {
 
diff --git a/include/libeosio/base58.h b/include/libeosio/base58.hpp
similarity index 100%
rename from include/libeosio/base58.h
rename to include/libeosio/base58.hpp
diff --git a/include/libeosio/checksum.h b/include/libeosio/checksum.hpp
similarity index 98%
rename from include/libeosio/checksum.h
rename to include/libeosio/checksum.hpp
index db518a3..0f3265a 100644
--- a/include/libeosio/checksum.h
+++ b/include/libeosio/checksum.hpp
@@ -27,7 +27,7 @@
 #include <cstdint>
 #include <cstring>
 #include <array>
-#include <libeosio/hash.h>
+#include <libeosio/hash.hpp>
 
 namespace libeosio {
 
diff --git a/include/libeosio/ec.h b/include/libeosio/ec.hpp
similarity index 97%
rename from include/libeosio/ec.h
rename to include/libeosio/ec.hpp
index 756f5d4..4c1f124 100644
--- a/include/libeosio/ec.h
+++ b/include/libeosio/ec.hpp
@@ -24,7 +24,7 @@
 #ifndef LIBEOSIO_EC_H
 #define LIBEOSIO_EC_H
 
-#include <libeosio/types.h>
+#include <libeosio/types.hpp>
 
 namespace libeosio {
 
diff --git a/include/libeosio/hash.h b/include/libeosio/hash.hpp
similarity index 98%
rename from include/libeosio/hash.h
rename to include/libeosio/hash.hpp
index fa038d4..74badd4 100644
--- a/include/libeosio/hash.h
+++ b/include/libeosio/hash.hpp
@@ -25,7 +25,7 @@
 #define LIBEOSIO_HASH_H
 
 #include <cstdint>
-#include <libeosio/types.h>
+#include <libeosio/types.hpp>
 
 namespace libeosio {
 
diff --git a/include/libeosio/types.h b/include/libeosio/types.hpp
similarity index 100%
rename from include/libeosio/types.h
rename to include/libeosio/types.hpp
diff --git a/src/WIF.cpp b/src/WIF.cpp
index cbc0554..25e4b63 100644
--- a/src/WIF.cpp
+++ b/src/WIF.cpp
@@ -23,9 +23,9 @@
  */
 #include <iostream>
 #include <string.h>
-#include <libeosio/base58.h>
-#include <libeosio/checksum.h>
-#include <libeosio/WIF.h>
+#include <libeosio/base58.hpp>
+#include <libeosio/checksum.hpp>
+#include <libeosio/WIF.hpp>
 
 namespace libeosio {
 
diff --git a/src/base58.cpp b/src/base58.cpp
index 73f060b..616572a 100644
--- a/src/base58.cpp
+++ b/src/base58.cpp
@@ -27,7 +27,7 @@
 #include <algorithm>
 #include <cstddef>
 #include <cassert>
-#include <libeosio/base58.h>
+#include <libeosio/base58.hpp>
 
 namespace libeosio {
 
diff --git a/src/openssl/ec.cpp b/src/openssl/ec.cpp
index 5f0f9f7..388bcd6 100644
--- a/src/openssl/ec.cpp
+++ b/src/openssl/ec.cpp
@@ -24,7 +24,7 @@
 #include <openssl/ec.h>
 #include <openssl/bn.h>
 #include <openssl/hmac.h>
-#include <libeosio/ec.h>
+#include <libeosio/ec.hpp>
 
 namespace libeosio {
 
diff --git a/src/openssl/hash.cpp b/src/openssl/hash.cpp
index 6ff2e45..c4fb2b7 100644
--- a/src/openssl/hash.cpp
+++ b/src/openssl/hash.cpp
@@ -23,7 +23,7 @@
  */
 #include <openssl/sha.h>
 #include <openssl/ripemd.h>
-#include <libeosio/hash.h>
+#include <libeosio/hash.hpp>
 
 namespace libeosio {