diff --git a/srcpkgs/protobuf26/template b/srcpkgs/protobuf26/template
index 7923c0ed6f..e21142f3fa 100644
--- a/srcpkgs/protobuf26/template
+++ b/srcpkgs/protobuf26/template
@@ -1,6 +1,6 @@
 # Template file for 'protobuf26'
 pkgname=protobuf26
-version=3.15.5
+version=3.15.6
 revision=1
 wrksrc="protobuf-${version}"
 build_style=gnu-configure
@@ -12,7 +12,7 @@ license="BSD-3-Clause"
 homepage="https://developers.google.com/protocol-buffers/"
 changelog="https://raw.githubusercontent.com/google/protobuf/master/CHANGES.txt"
 distfiles="https://github.com/protocolbuffers/protobuf/archive/v${version}.tar.gz"
-checksum=bc3dbf1f09dba1b2eb3f2f70352ee97b9049066c9040ce0c9b67fb3294e91e4b
+checksum=65e020a42bdab44a66664d34421995829e9e79c60e5adaa08282fd14ca552f57
 
 # Switch to versioned package
 conflicts="protobuf18>=0 protobuf23>=0 protobuf24>=0 protobuf25>=0"