diff --git a/pkgs/development/python-modules/ircrobots/default.nix b/pkgs/development/python-modules/ircrobots/default.nix
index 359cf3e6934..74496e40220 100644
--- a/pkgs/development/python-modules/ircrobots/default.nix
+++ b/pkgs/development/python-modules/ircrobots/default.nix
@@ -13,19 +13,21 @@
 
 buildPythonPackage rec {
   pname = "ircrobots";
-  version = "0.3.3";
+  version = "0.3.5";
   disabled = pythonOlder "3.6";
 
   src = fetchFromGitHub {
     owner = "jesopo";
     repo = pname;
     rev = "v${version}";
-    sha256 = "0ykn6ch7aazv2cx13q2gr94arh6f96d8hwjwnrcjai3i3x4q2pkq";
+    sha256 = "1w04gif227fhzalrds9rscqmckv5h0x2p8600s876i19w41swi32";
   };
 
-  patches = [
-    ./relax-dependencies.patch
-  ];
+  postPatch = ''
+    # too specific pins https://github.com/jesopo/ircrobots/issues/3
+    sed -iE 's/==.*//' requirements.txt
+    sed -iE 's/dataclasses.*/dataclasses; python_version < "3.7"/' requirements.txt
+  '';
 
   propagatedBuildInputs = [
     anyio
diff --git a/pkgs/development/python-modules/ircrobots/relax-dependencies.patch b/pkgs/development/python-modules/ircrobots/relax-dependencies.patch
deleted file mode 100644
index 9aed3577f63..00000000000
--- a/pkgs/development/python-modules/ircrobots/relax-dependencies.patch
+++ /dev/null
@@ -1,14 +0,0 @@
-diff --git a/requirements.txt b/requirements.txt
-index 87a2d31..4e0efb1 100644
---- a/requirements.txt
-+++ b/requirements.txt
-@@ -1,6 +1,6 @@
--anyio            ==1.3.0
-+anyio
- asyncio-throttle ==1.0.1
--dataclasses      ==0.6
--ircstates        ==0.11.2
-+dataclasses; python_version < "3.7"
-+ircstates        >=0.11.2
- async_stagger    ==0.3.0
- async_timeout    ==3.0.1