diff --git a/CHANGELOG.md b/CHANGELOG.md
index b50a25f..9bb8046 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,6 @@
 # Version 1.9.1
 
+* Updating fast_xml to version 1.1.55.
 * Make `allow_unencrypted_sasl2` option also allow connection
   for clients that tell us they wanted to use but didn't find
   channel bindings
diff --git a/rebar.config b/rebar.config
index eaa2193..b9d5b3e 100644
--- a/rebar.config
+++ b/rebar.config
@@ -34,7 +34,7 @@
 	      {"priv/lib/xmpp_lang.so", ["c_src/xmpp_lang.c"]}]}.
 
 {deps, [{p1_utils, "~> 1.0.25", {git, "https://github.com/processone/p1_utils", {tag, "1.0.26"}}},
-	{fast_xml, "~> 1.1.51", {git, "https://github.com/processone/fast_xml", "d4ccd4e2bb72d2727837736f9202187f9442c003"}},
+	{fast_xml, "~> 1.1.51", {git, "https://github.com/processone/fast_xml", {tag, "1.1.55"}}},
 	{fast_tls, "~> 1.1.19", {git, "https://github.com/processone/fast_tls", {tag, "1.1.22"}}},
 	{ezlib, "~> 1.0.12", {git, "https://github.com/processone/ezlib", {tag, "1.0.13"}}},
 	{idna, "~> 6.0", {git, "https://github.com/benoitc/erlang-idna", {tag, "6.0.0"}}},
diff --git a/src/xmpp.app.src b/src/xmpp.app.src
index 9ecda72..ab1df47 100644
--- a/src/xmpp.app.src
+++ b/src/xmpp.app.src
@@ -24,7 +24,7 @@
 
 {application, xmpp,
  [{description,  "Erlang/Elixir XMPP parsing and serialization library"},
-  {vsn,          "1.9.0"},
+  {vsn,          "1.9.1"},
   {modules,      []},
   {registered,   []},
   {applications, [asn1, compiler, kernel, public_key, stdlib, syntax_tools,