diff --git a/mingw-w64-headers/include/wininet.h b/mingw-w64-headers/include/wininet.h
index bb19d65d2..61c3a11b7 100644
--- a/mingw-w64-headers/include/wininet.h
+++ b/mingw-w64-headers/include/wininet.h
@@ -61,6 +61,9 @@ extern "C" {
 #define INTERNET_REQFLAG_CACHE_WRITE_DISABLED 0x00000040
 #define INTERNET_REQFLAG_NET_TIMEOUT 0x00000080
 
+#define INTERNET_FLAG_IDN_DIRECT 0x00000001
+#define INTERNET_FLAG_IDN_PROXY 0x00000002
+
 #define INTERNET_FLAG_RELOAD 0x80000000
 
 #define INTERNET_FLAG_RAW_DATA 0x40000000
@@ -104,6 +107,7 @@ extern "C" {
 #define INTERNET_FLAG_TRANSFER_BINARY FTP_TRANSFER_TYPE_BINARY
 
 #define SECURITY_INTERNET_MASK (INTERNET_FLAG_IGNORE_CERT_CN_INVALID | INTERNET_FLAG_IGNORE_CERT_DATE_INVALID | INTERNET_FLAG_IGNORE_REDIRECT_TO_HTTPS | INTERNET_FLAG_IGNORE_REDIRECT_TO_HTTP)
+#define SECURITY_IGNORE_ERROR_MASK (INTERNET_FLAG_IGNORE_CERT_CN_INVALID | INTERNET_FLAG_IGNORE_CERT_DATE_INVALID | SECURITY_FLAG_IGNORE_UNKNOWN_CA | SECURITY_FLAG_IGNORE_REVOCATION | SECURITY_FLAG_IGNORE_WEAK_SIGNATURE)
 #define INTERNET_FLAGS_MASK (INTERNET_FLAG_RELOAD | INTERNET_FLAG_RAW_DATA | INTERNET_FLAG_EXISTING_CONNECT | INTERNET_FLAG_ASYNC | INTERNET_FLAG_PASSIVE | INTERNET_FLAG_NO_CACHE_WRITE | INTERNET_FLAG_MAKE_PERSISTENT | INTERNET_FLAG_FROM_CACHE | INTERNET_FLAG_SECURE | INTERNET_FLAG_KEEP_CONNECTION | INTERNET_FLAG_NO_AUTO_REDIRECT | INTERNET_FLAG_READ_PREFETCH | INTERNET_FLAG_NO_COOKIES | INTERNET_FLAG_NO_AUTH | INTERNET_FLAG_CACHE_IF_NET_FAIL | SECURITY_INTERNET_MASK | INTERNET_FLAG_RESYNCHRONIZE | INTERNET_FLAG_HYPERLINK | INTERNET_FLAG_NO_UI | INTERNET_FLAG_PRAGMA_NOCACHE | INTERNET_FLAG_CACHE_ASYNC | INTERNET_FLAG_FORMS_SUBMIT | INTERNET_FLAG_NEED_FILE | INTERNET_FLAG_RESTRICTED_ZONE | INTERNET_FLAG_TRANSFER_BINARY | INTERNET_FLAG_TRANSFER_ASCII | INTERNET_FLAG_FWD_BACK | INTERNET_FLAG_BGUPDATE)
 
 #define INTERNET_ERROR_MASK_INSERT_CDROM 0x1
@@ -476,6 +480,7 @@ extern "C" {
 #define INTERNET_OPTION_ERROR_MASK 62
 #define INTERNET_OPTION_FROM_CACHE_TIMEOUT 63
 #define INTERNET_OPTION_BYPASS_EDITED_ENTRY 64
+#define INTERNET_OPTION_HTTP_DECODING 65
 #define INTERNET_OPTION_DIAGNOSTIC_SOCKET_INFO 67
 #define INTERNET_OPTION_CODEPAGE 68
 #define INTERNET_OPTION_CACHE_TIMESTAMPS 69
@@ -507,11 +512,47 @@ extern "C" {
 
 #define INTERNET_OPTION_DATAFILE_EXT 96
 
+#define INTERNET_OPTION_CODEPAGE_PATH 100
+#define INTERNET_OPTION_CODEPAGE_EXTRA 101
+#define INTERNET_OPTION_IDN 102
+#define INTERNET_OPTION_MAX_CONNS_PER_PROXY 103
+#define INTERNET_OPTION_SUPPRESS_SERVER_AUTH 104
+#define INTERNET_OPTION_SERVER_CERT_CHAIN_CONTEXT 105
+
+#define INTERNET_OPTION_ENABLE_REDIRECT_CACHE_READ 122
+
+#define INTERNET_OPTION_COMPRESSED_CONTENT_LENGTH 147
+#define INTERNET_OPTION_ENABLE_HTTP_PROTOCOL 148
+#define INTERNET_OPTION_HTTP_PROTOCOL_USED 149
+
+#define INTERNET_OPTION_ENCODE_EXTRA 155
+
+#define INTERNET_OPTION_HSTS 157
+
+#define INTERNET_OPTION_ENTERPRISE_CONTEXT 159
+
+#define INTERNET_OPTION_CONNECTION_FILTER 162
+#define INTERNET_OPTION_REFERER_TOKEN_BINDING_HOSTNAME 163
+
+#define INTERNET_OPTION_TOKEN_BINDING_PUBLIC_KEY 181
+
+#define INTERNET_OPTION_COOKIES_SAME_SITE_LEVEL 187
+
 #define INTERNET_FIRST_OPTION INTERNET_OPTION_CALLBACK
 #define INTERNET_LAST_OPTION INTERNET_OPTION_DATAFILE_EXT
 
 #define INTERNET_PRIORITY_FOREGROUND 1000
 
+#define HTTP_COOKIES_SAME_SITE_LEVEL_UNKNOWN 0x0
+#define HTTP_COOKIES_SAME_SITE_LEVEL_SAME_SITE 0x1
+#define HTTP_COOKIES_SAME_SITE_LEVEL_CROSS_SITE_LAX 0x2
+#define HTTP_COOKIES_SAME_SITE_LEVEL_CROSS_SITE 0x3
+
+#define HTTP_COOKIES_SAME_SITE_LEVEL_MAX HTTP_COOKIES_SAME_SITE_LEVEL_CROSS_SITE
+
+#define HTTP_PROTOCOL_FLAG_HTTP2 0x2
+#define HTTP_PROTOCOL_MASK HTTP_PROTOCOL_FLAG_HTTP2
+
 #define INTERNET_HANDLE_TYPE_INTERNET 1
 #define INTERNET_HANDLE_TYPE_CONNECT_FTP 2
 #define INTERNET_HANDLE_TYPE_CONNECT_GOPHER 3
@@ -530,6 +571,7 @@ extern "C" {
 #define AUTH_FLAG_DISABLE_NEGOTIATE 0x00000001
 #define AUTH_FLAG_ENABLE_NEGOTIATE 0x00000002
 #define AUTH_FLAG_DISABLE_BASIC_CLEARCHANNEL 0x00000004
+#define AUTH_FLAG_DISABLE_SERVER_AUTH 0x00000008
 
 #define SECURITY_FLAG_SECURE 0x00000001
 #define SECURITY_FLAG_STRENGTH_WEAK 0x10000000
@@ -552,6 +594,7 @@ extern "C" {
 #define SECURITY_FLAG_IGNORE_REVOCATION 0x00000080
 #define SECURITY_FLAG_IGNORE_UNKNOWN_CA 0x00000100
 #define SECURITY_FLAG_IGNORE_WRONG_USAGE 0x00000200
+#define SECURITY_FLAG_IGNORE_WEAK_SIGNATURE 0x00010000
 
 #define SECURITY_FLAG_IGNORE_CERT_CN_INVALID INTERNET_FLAG_IGNORE_CERT_CN_INVALID
 #define SECURITY_FLAG_IGNORE_CERT_DATE_INVALID INTERNET_FLAG_IGNORE_CERT_DATE_INVALID
@@ -561,6 +604,8 @@ extern "C" {
 
 #define SECURITY_SET_MASK (SECURITY_FLAG_IGNORE_REVOCATION | SECURITY_FLAG_IGNORE_UNKNOWN_CA | SECURITY_FLAG_IGNORE_CERT_CN_INVALID | SECURITY_FLAG_IGNORE_CERT_DATE_INVALID | SECURITY_FLAG_IGNORE_WRONG_USAGE)
 
+#define SECURITY_FLAG_OPT_IN_WEAK_SIGNATURE 0x00020000
+
 #define AUTODIAL_MODE_NEVER 1
 #define AUTODIAL_MODE_ALWAYS 2
 #define AUTODIAL_MODE_NO_NETWORK_PRESENT 4
@@ -1035,6 +1080,33 @@ extern "C" {
 #define HTTP_QUERY_PASSPORT_URLS 77
 #define HTTP_QUERY_PASSPORT_CONFIG 78
 
+#define HTTP_QUERY_X_CONTENT_TYPE_OPTIONS 79
+#define HTTP_QUERY_P3P 80
+#define HTTP_QUERY_X_P2P_PEERDIST 81
+#define HTTP_QUERY_TRANSLATE 82
+#define HTTP_QUERY_X_UA_COMPATIBLE 83
+#define HTTP_QUERY_DEFAULT_STYLE 84
+#define HTTP_QUERY_X_FRAME_OPTIONS 85
+#define HTTP_QUERY_X_XSS_PROTECTION 86
+
+#define HTTP_QUERY_SET_COOKIE2 87
+
+#define HTTP_QUERY_DO_NOT_TRACK 88
+
+#define HTTP_QUERY_KEEP_ALIVE 89
+
+#define HTTP_QUERY_HTTP2_SETTINGS 90
+
+#define HTTP_QUERY_STRICT_TRANSPORT_SECURITY 91
+
+#define HTTP_QUERY_TOKEN_BINDING 92
+
+#define HTTP_QUERY_INCLUDE_REFERRED_TOKEN_BINDING_ID 93
+#define HTTP_QUERY_INCLUDE_REFERER_TOKEN_BINDING_ID HTTP_QUERY_INCLUDE_REFERRED_TOKEN_BINDING_ID
+
+#define HTTP_QUERY_PUBLIC_KEY_PINS 94
+#define HTTP_QUERY_PUBLIC_KEY_PINS_REPORT_ONLY 95
+
 #define HTTP_QUERY_MAX 78
 #define HTTP_QUERY_CUSTOM 65535
 
@@ -1042,7 +1114,9 @@ extern "C" {
 #define HTTP_QUERY_FLAG_SYSTEMTIME 0x40000000
 #define HTTP_QUERY_FLAG_NUMBER 0x20000000
 #define HTTP_QUERY_FLAG_COALESCE 0x10000000
-#define HTTP_QUERY_MODIFIER_FLAGS_MASK (HTTP_QUERY_FLAG_REQUEST_HEADERS | HTTP_QUERY_FLAG_SYSTEMTIME | HTTP_QUERY_FLAG_NUMBER | HTTP_QUERY_FLAG_COALESCE)
+#define HTTP_QUERY_FLAG_NUMBER64 0x08000000
+#define HTTP_QUERY_FLAG_COALESCE_WITH_COMMA 0x04000000
+#define HTTP_QUERY_MODIFIER_FLAGS_MASK (HTTP_QUERY_FLAG_REQUEST_HEADERS | HTTP_QUERY_FLAG_SYSTEMTIME | HTTP_QUERY_FLAG_NUMBER | HTTP_QUERY_FLAG_COALESCE | HTTP_QUERY_FLAG_NUMBER64 | HTTP_QUERY_FLAG_COALESCE_WITH_COMMA)
 #define HTTP_QUERY_HEADER_MASK (~HTTP_QUERY_MODIFIER_FLAGS_MASK)
 
 #define HTTP_STATUS_CONTINUE 100
@@ -1063,6 +1137,7 @@ extern "C" {
 #define HTTP_STATUS_NOT_MODIFIED 304
 #define HTTP_STATUS_USE_PROXY 305
 #define HTTP_STATUS_REDIRECT_KEEP_VERB 307
+#define HTTP_STATUS_PERMANENT_REDIRECT 308
 
 #define HTTP_STATUS_BAD_REQUEST 400
 #define HTTP_STATUS_DENIED 401
@@ -1080,6 +1155,7 @@ extern "C" {
 #define HTTP_STATUS_REQUEST_TOO_LARGE 413
 #define HTTP_STATUS_URI_TOO_LONG 414
 #define HTTP_STATUS_UNSUPPORTED_MEDIA 415
+#define HTTP_STATUS_MISDIRECTED_REQUEST 421
 #define HTTP_STATUS_RETRY_WITH 449
 
 #define HTTP_STATUS_SERVER_ERROR 500
@@ -1133,6 +1209,16 @@ extern "C" {
   BOOLAPI HttpQueryInfoA(HINTERNET hRequest,DWORD dwInfoLevel,LPVOID lpBuffer,LPDWORD lpdwBufferLength,LPDWORD lpdwIndex);
   BOOLAPI HttpQueryInfoW(HINTERNET hRequest,DWORD dwInfoLevel,LPVOID lpBuffer,LPDWORD lpdwBufferLength,LPDWORD lpdwIndex);
 
+  typedef struct {
+    PWSTR pwszName;
+    PWSTR pwszValue;
+    PWSTR pwszDomain;
+    PWSTR pwszPath;
+    DWORD dwFlags;
+    FILETIME ftExpires;
+    WINBOOL fExpiresSet;
+  } INTERNET_COOKIE2;
+
 #define INTERNET_COOKIE_IS_SECURE 0x01
 #define INTERNET_COOKIE_IS_SESSION 0x02
 
@@ -1146,6 +1232,16 @@ extern "C" {
 #define INTERNET_COOKIE_IE6 0x400
 #define INTERNET_COOKIE_IS_LEGACY 0x800
 
+#define INTERNET_COOKIE_NON_SCRIPT 0x00001000
+#define INTERNET_COOKIE_HTTPONLY 0x00002000
+#define INTERNET_COOKIE_HOST_ONLY 0x00004000
+#define INTERNET_COOKIE_APPLY_HOST_ONLY 0x00008000
+
+#define INTERNET_COOKIE_HOST_ONLY_APPLIED 0x00080000
+#define INTERNET_COOKIE_SAME_SITE_STRICT 0x00100000
+#define INTERNET_COOKIE_SAME_SITE_LAX 0x00200000
+#define INTERNET_COOKIE_SAME_SITE_LEVEL_CROSS_SITE 0x00400000
+
 #define InternetSetCookie __MINGW_NAME_AW(InternetSetCookie)
 #define InternetGetCookie __MINGW_NAME_AW(InternetGetCookie)
 #define InternetSetCookieEx __MINGW_NAME_AW(InternetSetCookieEx)