diff --git a/pandoc.cabal b/pandoc.cabal
index 5620182f8..496600ac7 100644
--- a/pandoc.cabal
+++ b/pandoc.cabal
@@ -260,7 +260,7 @@ Library
                  text >= 0.11 && < 1.3,
                  zip-archive >= 0.2.3.4 && < 0.4,
                  HTTP >= 4000.0.5 && < 4000.4,
-                 texmath >= 0.8.6.2 && < 0.9,
+                 texmath >= 0.8.6.4 && < 0.9,
                  xml >= 1.3.12 && < 1.4,
                  random >= 1 && < 1.2,
                  extensible-exceptions >= 0.1 && < 0.2,
diff --git a/stack.yaml b/stack.yaml
index a8a71f47e..37b361d44 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -10,4 +10,5 @@ packages:
 extra-deps:
 - data-default-0.6.0
 - data-default-instances-base-0.1.0
+- texmath-0.8.6.4
 resolver: lts-6.1