diff --git a/composer.json b/composer.json
index cac91f21..bf47e083 100644
--- a/composer.json
+++ b/composer.json
@@ -37,19 +37,19 @@
     },
     "require-dev": {
         "laminas/laminas-coding-standard": "^2.4.0",
-        "laminas/laminas-db": "^2.7",
-        "laminas/laminas-filter": "^2.14.0",
-        "laminas/laminas-http": "^2.14.2",
-        "laminas/laminas-i18n": "^2.15.0",
-        "laminas/laminas-session": "^2.12.1",
+        "laminas/laminas-db": "^2.15.0",
+        "laminas/laminas-filter": "^2.18.0",
+        "laminas/laminas-http": "^2.16.0",
+        "laminas/laminas-i18n": "^2.17.0",
+        "laminas/laminas-session": "^2.13.0",
         "laminas/laminas-uri": "^2.9.1",
         "phpspec/prophecy-phpunit": "^2.0",
-        "phpunit/phpunit": "^9.5.21",
+        "phpunit/phpunit": "^9.5.24",
         "psalm/plugin-phpunit": "^0.17.0",
         "psr/http-client": "^1.0",
         "psr/http-factory": "^1.0",
         "psr/http-message": "^1.0",
-        "vimeo/psalm": "^4.24.0"
+        "vimeo/psalm": "^4.27.0"
     },
     "suggest": {
         "laminas/laminas-db": "Laminas\\Db component, required by the (No)RecordExists validator",
diff --git a/composer.lock b/composer.lock
index e9bda449..6961b438 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "b99de6e42a0689e2cc05c918c3bd2b66",
+    "content-hash": "692419bd211c070dc48def1f401530d0",
     "packages": [
         {
             "name": "laminas/laminas-servicemanager",
@@ -1205,16 +1205,16 @@
         },
         {
             "name": "laminas/laminas-filter",
-            "version": "2.17.0",
+            "version": "2.18.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/laminas/laminas-filter.git",
-                "reference": "7c78483f22e118fbc98be41dc24b39e8c17cdcae"
+                "reference": "8d352d8d031af69a366ba5eb5b812a5d33e97c3c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/laminas/laminas-filter/zipball/7c78483f22e118fbc98be41dc24b39e8c17cdcae",
-                "reference": "7c78483f22e118fbc98be41dc24b39e8c17cdcae",
+                "url": "https://api.github.com/repos/laminas/laminas-filter/zipball/8d352d8d031af69a366ba5eb5b812a5d33e97c3c",
+                "reference": "8d352d8d031af69a366ba5eb5b812a5d33e97c3c",
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@@ -1279,7 +1279,7 @@
                     "type": "community_bridge"
                 }
             ],
-            "time": "2022-07-17T11:58:06+00:00"
+            "time": "2022-09-09T05:08:45+00:00"
         },
         {
             "name": "laminas/laminas-http",
@@ -1742,16 +1742,16 @@
         },
         {
             "name": "nikic/php-parser",
-            "version": "v4.14.0",
+            "version": "v4.15.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/nikic/PHP-Parser.git",
-                "reference": "34bea19b6e03d8153165d8f30bba4c3be86184c1"
+                "reference": "0ef6c55a3f47f89d7a374e6f835197a0b5fcf900"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/nikic/PHP-Parser/zipball/34bea19b6e03d8153165d8f30bba4c3be86184c1",
-                "reference": "34bea19b6e03d8153165d8f30bba4c3be86184c1",
+                "url": "https://api.github.com/repos/nikic/PHP-Parser/zipball/0ef6c55a3f47f89d7a374e6f835197a0b5fcf900",
+                "reference": "0ef6c55a3f47f89d7a374e6f835197a0b5fcf900",
                 "shasum": ""
             },
             "require": {
@@ -1792,9 +1792,9 @@
             ],
             "support": {
                 "issues": "https://github.com/nikic/PHP-Parser/issues",
-                "source": "https://github.com/nikic/PHP-Parser/tree/v4.14.0"
+                "source": "https://github.com/nikic/PHP-Parser/tree/v4.15.1"
             },
-            "time": "2022-05-31T20:59:12+00:00"
+            "time": "2022-09-04T07:30:47+00:00"
         },
         {
             "name": "openlss/lib-array2xml",
@@ -2285,16 +2285,16 @@
         },
         {
             "name": "phpunit/php-code-coverage",
-            "version": "9.2.16",
+            "version": "9.2.17",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-code-coverage.git",
-                "reference": "2593003befdcc10db5e213f9f28814f5aa8ac073"
+                "reference": "aa94dc41e8661fe90c7316849907cba3007b10d8"
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-                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/2593003befdcc10db5e213f9f28814f5aa8ac073",
-                "reference": "2593003befdcc10db5e213f9f28814f5aa8ac073",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/aa94dc41e8661fe90c7316849907cba3007b10d8",
+                "reference": "aa94dc41e8661fe90c7316849907cba3007b10d8",
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@@ -2350,7 +2350,7 @@
             ],
             "support": {
                 "issues": "https://github.com/sebastianbergmann/php-code-coverage/issues",
-                "source": "https://github.com/sebastianbergmann/php-code-coverage/tree/9.2.16"
+                "source": "https://github.com/sebastianbergmann/php-code-coverage/tree/9.2.17"
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             "funding": [
                 {
@@ -2358,7 +2358,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2022-08-20T05:26:47+00:00"
+            "time": "2022-08-30T12:24:04+00:00"
         },
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             "name": "phpunit/php-file-iterator",
@@ -2603,16 +2603,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "9.5.23",
+            "version": "9.5.24",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "888556852e7e9bbeeedb9656afe46118765ade34"
+                "reference": "d0aa6097bef9fd42458a9b3c49da32c6ce6129c5"
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-                "reference": "888556852e7e9bbeeedb9656afe46118765ade34",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/d0aa6097bef9fd42458a9b3c49da32c6ce6129c5",
+                "reference": "d0aa6097bef9fd42458a9b3c49da32c6ce6129c5",
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@@ -2641,7 +2641,7 @@
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                 "sebastian/object-enumerator": "^4.0.3",
                 "sebastian/resource-operations": "^3.0.3",
-                "sebastian/type": "^3.0",
+                "sebastian/type": "^3.1",
                 "sebastian/version": "^3.0.2"
             },
             "suggest": {
@@ -2685,7 +2685,7 @@
             ],
             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/9.5.23"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/9.5.24"
             },
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                 {
@@ -2697,7 +2697,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2022-08-22T14:01:36+00:00"
+            "time": "2022-08-30T07:42:16+00:00"
         },
         {
             "name": "psalm/plugin-phpunit",
@@ -3826,16 +3826,16 @@
         },
         {
             "name": "sebastian/type",
-            "version": "3.0.0",
+            "version": "3.2.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/type.git",
-                "reference": "b233b84bc4465aff7b57cf1c4bc75c86d00d6dad"
+                "reference": "fb3fe09c5f0bae6bc27ef3ce933a1e0ed9464b6e"
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             "dist": {
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-                "url": "https://api.github.com/repos/sebastianbergmann/type/zipball/b233b84bc4465aff7b57cf1c4bc75c86d00d6dad",
-                "reference": "b233b84bc4465aff7b57cf1c4bc75c86d00d6dad",
+                "url": "https://api.github.com/repos/sebastianbergmann/type/zipball/fb3fe09c5f0bae6bc27ef3ce933a1e0ed9464b6e",
+                "reference": "fb3fe09c5f0bae6bc27ef3ce933a1e0ed9464b6e",
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@@ -3847,7 +3847,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.0-dev"
+                    "dev-master": "3.2-dev"
                 }
             },
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@@ -3870,7 +3870,7 @@
             "homepage": "https://github.com/sebastianbergmann/type",
             "support": {
                 "issues": "https://github.com/sebastianbergmann/type/issues",
-                "source": "https://github.com/sebastianbergmann/type/tree/3.0.0"
+                "source": "https://github.com/sebastianbergmann/type/tree/3.2.0"
             },
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                 {
@@ -3878,7 +3878,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2022-03-15T09:54:48+00:00"
+            "time": "2022-09-12T14:47:03+00:00"
         },
         {
             "name": "sebastian/version",
@@ -4052,16 +4052,16 @@
         },
         {
             "name": "symfony/console",
-            "version": "v5.4.11",
+            "version": "v5.4.12",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/console.git",
-                "reference": "535846c7ee6bc4dd027ca0d93220601456734b10"
+                "reference": "c072aa8f724c3af64e2c7a96b796a4863d24dba1"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/console/zipball/535846c7ee6bc4dd027ca0d93220601456734b10",
-                "reference": "535846c7ee6bc4dd027ca0d93220601456734b10",
+                "url": "https://api.github.com/repos/symfony/console/zipball/c072aa8f724c3af64e2c7a96b796a4863d24dba1",
+                "reference": "c072aa8f724c3af64e2c7a96b796a4863d24dba1",
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@@ -4131,7 +4131,7 @@
                 "terminal"
             ],
             "support": {
-                "source": "https://github.com/symfony/console/tree/v5.4.11"
+                "source": "https://github.com/symfony/console/tree/v5.4.12"
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                 {
@@ -4147,7 +4147,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2022-07-22T10:42:43+00:00"
+            "time": "2022-08-17T13:18:05+00:00"
         },
         {
             "name": "symfony/deprecation-contracts",
@@ -4793,16 +4793,16 @@
         },
         {
             "name": "symfony/string",
-            "version": "v5.4.11",
+            "version": "v5.4.12",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/string.git",
-                "reference": "5eb661e49ad389e4ae2b6e4df8d783a8a6548322"
+                "reference": "2fc515e512d721bf31ea76bd02fe23ada4640058"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/string/zipball/5eb661e49ad389e4ae2b6e4df8d783a8a6548322",
-                "reference": "5eb661e49ad389e4ae2b6e4df8d783a8a6548322",
+                "url": "https://api.github.com/repos/symfony/string/zipball/2fc515e512d721bf31ea76bd02fe23ada4640058",
+                "reference": "2fc515e512d721bf31ea76bd02fe23ada4640058",
                 "shasum": ""
             },
             "require": {
@@ -4859,7 +4859,7 @@
                 "utf8"
             ],
             "support": {
-                "source": "https://github.com/symfony/string/tree/v5.4.11"
+                "source": "https://github.com/symfony/string/tree/v5.4.12"
             },
             "funding": [
                 {
@@ -4875,7 +4875,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2022-07-24T16:15:25+00:00"
+            "time": "2022-08-12T17:03:11+00:00"
         },
         {
             "name": "theseer/tokenizer",
@@ -4929,16 +4929,16 @@
         },
         {
             "name": "vimeo/psalm",
-            "version": "4.26.0",
+            "version": "4.27.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/vimeo/psalm.git",
-                "reference": "6998fabb2bf528b65777bf9941920888d23c03ac"
+                "reference": "faf106e717c37b8c81721845dba9de3d8deed8ff"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/vimeo/psalm/zipball/6998fabb2bf528b65777bf9941920888d23c03ac",
-                "reference": "6998fabb2bf528b65777bf9941920888d23c03ac",
+                "url": "https://api.github.com/repos/vimeo/psalm/zipball/faf106e717c37b8c81721845dba9de3d8deed8ff",
+                "reference": "faf106e717c37b8c81721845dba9de3d8deed8ff",
                 "shasum": ""
             },
             "require": {
@@ -5030,9 +5030,9 @@
             ],
             "support": {
                 "issues": "https://github.com/vimeo/psalm/issues",
-                "source": "https://github.com/vimeo/psalm/tree/4.26.0"
+                "source": "https://github.com/vimeo/psalm/tree/4.27.0"
             },
-            "time": "2022-07-31T13:10:26+00:00"
+            "time": "2022-08-31T13:47:09+00:00"
         },
         {
             "name": "webimpress/coding-standard",
diff --git a/src/DateStep.php b/src/DateStep.php
index 2ec86dac..8e964778 100644
--- a/src/DateStep.php
+++ b/src/DateStep.php
@@ -16,6 +16,7 @@
 use function array_count_values;
 use function array_map;
 use function array_shift;
+use function assert;
 use function ceil;
 use function date_default_timezone_get;
 use function explode;
@@ -408,6 +409,7 @@ private function fallbackIncrementalIterationLogic(
             } else {
                 $baseDate = $baseDate->sub($minimumInterval);
             }
+            assert($baseDate !== false);
         }
 
         while (
@@ -420,6 +422,8 @@ private function fallbackIncrementalIterationLogic(
                 $baseDate = $baseDate->sub($step);
             }
 
+            assert($baseDate !== false);
+
             // phpcs:ignore SlevomatCodingStandard.Operators.DisallowEqualOperators.DisallowedEqualOperator
             if ($baseDate == $valueDate) {
                 return true;