diff --git a/core/bison/checksums b/core/bison/checksums
index a3ccacf4..67be4a2e 100644
--- a/core/bison/checksums
+++ b/core/bison/checksums
@@ -1 +1 @@
-4c17e99881978fa32c05933c5262457fa5b2b611668454f8dc2a695cd6b3720c  bison-3.5.4.tar.xz
+e16f26baa2ebff141333e452c3cc5d8ea26bda6d2cd8b0b7a5604faa3a4ad47b  bison-3.6.tar.xz
diff --git a/core/bison/sources b/core/bison/sources
index 46836926..f7c4f7a5 100644
--- a/core/bison/sources
+++ b/core/bison/sources
@@ -1 +1 @@
-https://ftp.gnu.org/gnu/bison/bison-3.5.4.tar.xz
+https://ftp.gnu.org/gnu/bison/bison-3.6.tar.xz
diff --git a/core/bison/version b/core/bison/version
index 7fc0a169..712a0c0b 100644
--- a/core/bison/version
+++ b/core/bison/version
@@ -1 +1 @@
-3.5.4 1
+3.6 1