diff --git a/bytesconv_32.go b/bytesconv_32.go
index baa9459..3ef1d68 100644
--- a/bytesconv_32.go
+++ b/bytesconv_32.go
@@ -1,4 +1,4 @@
-//go:build !amd64 && !arm64 && !ppc64 && !ppc64le && !s390x
+//go:build !amd64 && !arm64 && !ppc64 && !ppc64le && !riscv64 && !s390x
 
 package fasthttp
 
diff --git a/bytesconv_32_test.go b/bytesconv_32_test.go
index b954bba..5b8594f 100644
--- a/bytesconv_32_test.go
+++ b/bytesconv_32_test.go
@@ -1,4 +1,4 @@
-//go:build !amd64 && !arm64 && !ppc64 && !ppc64le && !s390x
+//go:build !amd64 && !arm64 && !ppc64 && !ppc64le && !riscv64 && !s390x
 
 package fasthttp
 
diff --git a/bytesconv_64.go b/bytesconv_64.go
index e7c01bb..c40915e 100644
--- a/bytesconv_64.go
+++ b/bytesconv_64.go
@@ -1,4 +1,4 @@
-//go:build amd64 || arm64 || ppc64 || ppc64le || s390x
+//go:build amd64 || arm64 || ppc64 || ppc64le || riscv64 || s390x
 
 package fasthttp
 
diff --git a/bytesconv_64_test.go b/bytesconv_64_test.go
index 8eb5030..4c0153e 100644
--- a/bytesconv_64_test.go
+++ b/bytesconv_64_test.go
@@ -1,4 +1,4 @@
-//go:build amd64 || arm64 || ppc64 || ppc64le || s390x
+//go:build amd64 || arm64 || ppc64 || ppc64le || riscv64 || s390x
 
 package fasthttp
 
diff --git a/round2_32.go b/round2_32.go
index f7276fc..9da0e29 100644
--- a/round2_32.go
+++ b/round2_32.go
@@ -1,4 +1,4 @@
-//go:build !amd64 && !arm64 && !ppc64 && !ppc64le && !s390x
+//go:build !amd64 && !arm64 && !ppc64 && !ppc64le && !riscv64 && !s390x
 
 package fasthttp
 
diff --git a/round2_32_test.go b/round2_32_test.go
index 51dc2f5..7e4145d 100644
--- a/round2_32_test.go
+++ b/round2_32_test.go
@@ -1,4 +1,4 @@
-//go:build !amd64 && !arm64 && !ppc64 && !ppc64le && !s390x
+//go:build !amd64 && !arm64 && !ppc64 && !ppc64le && !riscv64 && !s390x
 
 package fasthttp
 
diff --git a/round2_64.go b/round2_64.go
index e74368c..a05df23 100644
--- a/round2_64.go
+++ b/round2_64.go
@@ -1,4 +1,4 @@
-//go:build amd64 || arm64 || ppc64 || ppc64le || s390x
+//go:build amd64 || arm64 || ppc64 || ppc64le || riscv64 || s390x
 
 package fasthttp
 
diff --git a/round2_64_test.go b/round2_64_test.go
index 2509ce9..d7b53d8 100644
--- a/round2_64_test.go
+++ b/round2_64_test.go
@@ -1,4 +1,4 @@
-//go:build amd64 || arm64 || ppc64 || ppc64le || s390x
+//go:build amd64 || arm64 || ppc64 || ppc64le || riscv64 || s390x
 
 package fasthttp