diff --git a/changelog/12505.txt b/changelog/12505.txt
new file mode 100644
index 000000000..075e53dd6
--- /dev/null
+++ b/changelog/12505.txt
@@ -0,0 +1,3 @@
+```release-note:improvement
+agent/template: add support for new 'writeToFile' template function
+```
\ No newline at end of file
diff --git a/go.mod b/go.mod
index 9ab60082f..462558142 100644
--- a/go.mod
+++ b/go.mod
@@ -56,7 +56,7 @@ require (
 	github.com/google/go-cmp v0.5.5
 	github.com/google/go-github v17.0.0+incompatible
 	github.com/google/go-metrics-stackdriver v0.2.0
-	github.com/hashicorp/consul-template v0.26.0
+	github.com/hashicorp/consul-template v0.27.0
 	github.com/hashicorp/consul/api v1.4.0
 	github.com/hashicorp/errwrap v1.1.0
 	github.com/hashicorp/go-cleanhttp v0.5.2
diff --git a/go.sum b/go.sum
index 261e0a18a..77c95b8af 100644
--- a/go.sum
+++ b/go.sum
@@ -579,8 +579,8 @@ github.com/hailocab/go-hostpool v0.0.0-20160125115350-e80d13ce29ed h1:5upAirOpQc
 github.com/hailocab/go-hostpool v0.0.0-20160125115350-e80d13ce29ed/go.mod h1:tMWxXQ9wFIaZeTI9F+hmhFiGpFmhOHzyShyFUhRm0H4=
 github.com/hashicorp/cap v0.1.0 h1:uBDfu9NDvmotza/mJW6vtQId+VYid9ztlTnDCW6YUWU=
 github.com/hashicorp/cap v0.1.0/go.mod h1:VfBvK2ULRyqsuqAnjgZl7HJ7/CGMC7ro4H5eXiZuun8=
-github.com/hashicorp/consul-template v0.26.0 h1:sLjsLZI4oMUNcvcV376F6OhJHWwWRlZ8hjfyPujEMm4=
-github.com/hashicorp/consul-template v0.26.0/go.mod h1:HoNM2jHenwY2bqNHn5yYoMSAtHEFhbUDHYf1ZwTBOmg=
+github.com/hashicorp/consul-template v0.27.0 h1:UwDPC7+SsHIkEWDul+Z4JfBEz3N2S4l7YwAHMAGLhQk=
+github.com/hashicorp/consul-template v0.27.0/go.mod h1:/3Z8sazWqkRMZ9vxlstVp/7hOnL8UInzzFTnNHPHWKo=
 github.com/hashicorp/consul/api v1.3.0/go.mod h1:MmDNSzIMUjNpY/mQ398R4bk2FnqQLoPndWW5VkKPlCE=
 github.com/hashicorp/consul/api v1.4.0 h1:jfESivXnO5uLdH650JU/6AnjRoHrLhULq0FnC3Kp9EY=
 github.com/hashicorp/consul/api v1.4.0/go.mod h1:xc8u05kyMa3Wjr9eEAsIAo3dg8+LywT5E/Cl7cNS5nU=
@@ -781,8 +781,9 @@ github.com/hudl/fargo v1.3.0/go.mod h1:y3CKSmjA+wD2gak7sUSXTAoopbhU08POFhmITJgmK
 github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
 github.com/imdario/mergo v0.3.5/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA=
 github.com/imdario/mergo v0.3.6/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJh5FfA=
-github.com/imdario/mergo v0.3.11 h1:3tnifQM4i+fbajXKBHXWEH+KvNHqojZ778UH75j3bGA=
 github.com/imdario/mergo v0.3.11/go.mod h1:jmQim1M+e3UYxmgPu/WyfjB3N3VflVyUjjjwH0dnCYA=
+github.com/imdario/mergo v0.3.12 h1:b6R2BslTbIEToALKP7LxUvijTsNI9TAe80pLWN2g/HU=
+github.com/imdario/mergo v0.3.12/go.mod h1:jmQim1M+e3UYxmgPu/WyfjB3N3VflVyUjjjwH0dnCYA=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
 github.com/influxdata/influxdb v0.0.0-20190411212539-d24b7ba8c4c4 h1:3K3KcD4S6/Y2hevi70EzUTNKOS3cryQyhUnkjE6Tz0w=
 github.com/influxdata/influxdb v0.0.0-20190411212539-d24b7ba8c4c4/go.mod h1:qZna6X/4elxqT3yI9iZYdZrWWdeFOOprn86kgg4+IzY=
@@ -903,8 +904,6 @@ github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHX
 github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
 github.com/mattn/go-runewidth v0.0.2/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
 github.com/mattn/go-runewidth v0.0.3/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
-github.com/mattn/go-shellwords v1.0.12 h1:M2zGm7EW6UQJvDeQxo4T51eKPurbeFbe8WtebGE2xrk=
-github.com/mattn/go-shellwords v1.0.12/go.mod h1:EZzvwXDESEeg03EKmM+RmDnNOPKG4lLtQsUlTZDWQ8Y=
 github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
 github.com/mholt/archiver v3.1.1+incompatible h1:1dCVxuqs0dJseYEhi5pl7MYPH9zDa1wBi7mF09cbNkU=