diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5ad6239..314a466 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Versions
 
+## 0.1.3
+
+- `featureFlagDetails`: Add support for anchor channels and anchor zero fee transactions
+
 ## 0.1.2
 
 - `featureFlagDetails`: Add support for large channel flags on 18/19 bit
diff --git a/feature_flags.json b/feature_flags.json
index c80f780..b10102d 100644
--- a/feature_flags.json
+++ b/feature_flags.json
@@ -23,5 +23,15 @@
   "16": {"name": "basic_mpp", "type": "multipath_payments_v0"},
   "17": {"name": "basic_mpp", "type": "multipath_payments_v0"},
   "18": {"name": "option_support_large_channel", "type": "large_channels"},
-  "19": {"name": "option_support_large_channel", "type": "large_channels"}
+  "19": {"name": "option_support_large_channel", "type": "large_channels"},
+  "20": {"name": "option_anchor_outputs", "type": "anchor_channels"},
+  "21": {"name": "option_anchor_outputs", "type": "anchor_channels"},
+  "22": {
+    "name": "option_anchors_zero_fee_htlc_tx",
+    "type": "anchor_zero_fee_htlc_tx"
+  },
+  "23": {
+    "name": "option_anchors_zero_fee_htlc_tx",
+    "type": "anchor_zero_fee_htlc_tx"
+  }
 }
diff --git a/package-lock.json b/package-lock.json
index 7d45117..cc985fa 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,25 +1,25 @@
 {
   "name": "bolt09",
-  "version": "0.1.2",
+  "version": "0.1.3",
   "lockfileVersion": 1,
   "requires": true,
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+      "version": "7.12.11",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.12.11.tgz",
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       "dev": true,
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       }
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+      "version": "7.12.11",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.12.11.tgz",
+      "integrity": "sha512-Ggg6WPOJtSi8yYQvLVjG8F/TlpWDlKx0OpS4Kt+xMQPs5OaGYWy+v1A+1TvxI6sAMGZpKWWoAQ1DaeQbImlItA==",
       "dev": true,
       "requires": {
-        "@babel/types": "^7.11.5",
+        "@babel/types": "^7.12.11",
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       },
@@ -33,38 +33,38 @@
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-      "resolved": "https://registry.npmjs.org/@babel/helper-function-name/-/helper-function-name-7.10.4.tgz",
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+      "version": "7.12.11",
+      "resolved": "https://registry.npmjs.org/@babel/helper-function-name/-/helper-function-name-7.12.11.tgz",
+      "integrity": "sha512-AtQKjtYNolKNi6nNNVLQ27CP6D9oFR6bq/HPYSizlzbp7uC1M59XJe8L+0uXjbIaZaUJF99ruHqVGiKXU/7ybA==",
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-        "@babel/template": "^7.10.4",
-        "@babel/types": "^7.10.4"
+        "@babel/helper-get-function-arity": "^7.12.10",
+        "@babel/template": "^7.12.7",
+        "@babel/types": "^7.12.11"
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-      "resolved": "https://registry.npmjs.org/@babel/helper-get-function-arity/-/helper-get-function-arity-7.10.4.tgz",
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+      "version": "7.12.10",
+      "resolved": "https://registry.npmjs.org/@babel/helper-get-function-arity/-/helper-get-function-arity-7.12.10.tgz",
+      "integrity": "sha512-mm0n5BPjR06wh9mPQaDdXWDoll/j5UpCAPl1x8fS71GHm7HA6Ua2V4ylG1Ju8lvcTOietbPNNPaSilKj+pj+Ag==",
       "dev": true,
       "requires": {
-        "@babel/types": "^7.10.4"
+        "@babel/types": "^7.12.10"
       }
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+      "version": "7.12.11",
+      "resolved": "https://registry.npmjs.org/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.12.11.tgz",
+      "integrity": "sha512-LsIVN8j48gHgwzfocYUSkO/hjYAOJqlpJEc7tGXcIm4cubjVUf8LGW6eWRyxEu7gA25q02p0rQUWoCI33HNS5g==",
       "dev": true,
       "requires": {
-        "@babel/types": "^7.11.0"
+        "@babel/types": "^7.12.11"
       }
     },
     "@babel/helper-validator-identifier": {
-      "version": "7.10.4",
-      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.10.4.tgz",
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+      "version": "7.12.11",
+      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.12.11.tgz",
+      "integrity": "sha512-np/lG3uARFybkoHokJUmf1QfEvRVCPbmQeUQpKow5cQ3xWrV9i3rUHodKDJPQfTVX61qKi+UdYk8kik84n7XOw==",
       "dev": true
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@@ -79,54 +79,54 @@
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+      "version": "7.12.11",
+      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.12.11.tgz",
+      "integrity": "sha512-N3UxG+uuF4CMYoNj8AhnbAcJF0PiuJ9KHuy1lQmkYsxTer/MAH9UBNHsBoAX/4s6NvlDD047No8mYVGGzLL4hg==",
       "dev": true
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-      "resolved": "https://registry.npmjs.org/@babel/template/-/template-7.10.4.tgz",
-      "integrity": "sha512-ZCjD27cGJFUB6nmCB1Enki3r+L5kJveX9pq1SvAUKoICy6CZ9yD8xO086YXdYhvNjBdnekm4ZnaP5yC8Cs/1tA==",
+      "version": "7.12.7",
+      "resolved": "https://registry.npmjs.org/@babel/template/-/template-7.12.7.tgz",
+      "integrity": "sha512-GkDzmHS6GV7ZeXfJZ0tLRBhZcMcY0/Lnb+eEbXDBfCAcZCjrZKe6p3J4we/D24O9Y8enxWAg1cWwof59yLh2ow==",
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-        "@babel/parser": "^7.10.4",
-        "@babel/types": "^7.10.4"
+        "@babel/parser": "^7.12.7",
+        "@babel/types": "^7.12.7"
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-        "@babel/helper-split-export-declaration": "^7.11.0",
-        "@babel/parser": "^7.11.5",
-        "@babel/types": "^7.11.5",
+        "@babel/code-frame": "^7.12.11",
+        "@babel/generator": "^7.12.11",
+        "@babel/helper-function-name": "^7.12.11",
+        "@babel/helper-split-export-declaration": "^7.12.11",
+        "@babel/parser": "^7.12.11",
+        "@babel/types": "^7.12.12",
         "debug": "^4.1.0",
         "globals": "^11.1.0",
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+      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.12.12.tgz",
+      "integrity": "sha512-lnIX7piTxOH22xE7fDXDbSHg9MM1/6ORnafpJmov5rs0kX5g4BZxeXNJLXsMRiO0U5Rb8/FvMS6xlTnTHvxonQ==",
       "dev": true,
       "requires": {
-        "@babel/helper-validator-identifier": "^7.10.4",
+        "@babel/helper-validator-identifier": "^7.12.11",
         "lodash": "^4.17.19",
         "to-fast-properties": "^2.0.0"
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-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.5.tgz",
-      "integrity": "sha512-lRF8RORchjpKG50/WFf8xmg7sgCLFiYNNnqdKflk63whMQcWR5ngGjiSXkL9bjxy6B2npOK2HSMN49jEBMSkag==",
+      "version": "6.12.6",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
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@@ -227,9 +227,9 @@
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+      "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.11.0.tgz",
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@@ -248,9 +248,9 @@
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@@ -339,19 +339,19 @@
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+      "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.5.1.tgz",
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       "dev": true,
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         "braces": "~3.0.2",
-        "fsevents": "~2.1.2",
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@@ -493,9 +493,9 @@
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@@ -705,12 +705,18 @@
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@@ -783,6 +789,15 @@
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@@ -1844,9 +1880,9 @@
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-        "stack-utils": "^1.0.2",
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@@ -3165,9 +3201,9 @@
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@@ -3287,9 +3323,9 @@
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diff --git a/package.json b/package.json
index 8db0d22..db17cfc 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   },
   "description": "BOLT 09 helper methods",
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-    "tap": "14.10.8"
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     "node": ">=10.4.0"
@@ -26,5 +26,5 @@
   "scripts": {
     "test": "tap test/*.js"
   },
-  "version": "0.1.2"
+  "version": "0.1.3"
 }