diff --git a/poetry.lock b/poetry.lock
index b854d4272..579dcda06 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -31,13 +31,13 @@ test = ["pytest", "pytest-cov"]
 
 [[package]]
 name = "anyio"
-version = "4.2.0"
+version = "4.3.0"
 description = "High level compatibility layer for multiple asynchronous event loop implementations"
 optional = true
 python-versions = ">=3.8"
 files = [
-    {file = "anyio-4.2.0-py3-none-any.whl", hash = "sha256:745843b39e829e108e518c489b31dc757de7d2131d53fac32bd8df268227bfee"},
-    {file = "anyio-4.2.0.tar.gz", hash = "sha256:e1875bb4b4e2de1669f4bc7869b6d3f54231cdced71605e6e64c9be77e3be50f"},
+    {file = "anyio-4.3.0-py3-none-any.whl", hash = "sha256:048e05d0f6caeed70d731f3db756d35dcc1f35747c8c403364a8332c630441b8"},
+    {file = "anyio-4.3.0.tar.gz", hash = "sha256:f75253795a87df48568485fd18cdd2a3fa5c4f7c5be8e5e36637733fce06fed6"},
 ]
 
 [package.dependencies]
@@ -1640,13 +1640,13 @@ socks = ["socksio (==1.*)"]
 
 [[package]]
 name = "identify"
-version = "2.5.34"
+version = "2.5.35"
 description = "File identification library for Python"
 optional = false
 python-versions = ">=3.8"
 files = [
-    {file = "identify-2.5.34-py2.py3-none-any.whl", hash = "sha256:a4316013779e433d08b96e5eabb7f641e6c7942e4ab5d4c509ebd2e7a8994aed"},
-    {file = "identify-2.5.34.tar.gz", hash = "sha256:ee17bc9d499899bc9eaec1ac7bf2dc9eedd480db9d88b96d123d3b64a9d34f5d"},
+    {file = "identify-2.5.35-py2.py3-none-any.whl", hash = "sha256:c4de0081837b211594f8e877a6b4fad7ca32bbfc1a9307fdd61c28bfe923f13e"},
+    {file = "identify-2.5.35.tar.gz", hash = "sha256:10a7ca245cfcd756a554a7288159f72ff105ad233c7c4b9c6f0f4d108f5f6791"},
 ]
 
 [package.extras]
@@ -3102,13 +3102,13 @@ mkdocs = ">=1.0.3"
 
 [[package]]
 name = "mkdocs-material"
-version = "9.5.9"
+version = "9.5.10"
 description = "Documentation that simply works"
 optional = false
 python-versions = ">=3.8"
 files = [
-    {file = "mkdocs_material-9.5.9-py3-none-any.whl", hash = "sha256:a5d62b73b3b74349e45472bfadc129c871dd2d4add68d84819580597b2f50d5d"},
-    {file = "mkdocs_material-9.5.9.tar.gz", hash = "sha256:635df543c01c25c412d6c22991872267723737d5a2f062490f33b2da1c013c6d"},
+    {file = "mkdocs_material-9.5.10-py3-none-any.whl", hash = "sha256:3c6c46b57d2ee3c8890e6e0406e68b6863cf65768f0f436990a742702d198442"},
+    {file = "mkdocs_material-9.5.10.tar.gz", hash = "sha256:6ad626dbb31070ebbaedff813323a16a406629620e04b96458f16e6e9c7008fe"},
 ]
 
 [package.dependencies]
@@ -3338,13 +3338,13 @@ test = ["flaky", "ipykernel (>=6.19.3)", "ipython", "ipywidgets", "nbconvert (>=
 
 [[package]]
 name = "nbconvert"
-version = "7.16.0"
-description = "Converting Jupyter Notebooks"
+version = "7.16.1"
+description = "Converting Jupyter Notebooks (.ipynb files) to other formats.  Output formats include asciidoc, html, latex, markdown, pdf, py, rst, script.  nbconvert can be used both as a Python library (`import nbconvert`) or as a command line tool (invoked as `jupyter nbconvert ...`)."
 optional = false
 python-versions = ">=3.8"
 files = [
-    {file = "nbconvert-7.16.0-py3-none-any.whl", hash = "sha256:ad3dc865ea6e2768d31b7eb6c7ab3be014927216a5ece3ef276748dd809054c7"},
-    {file = "nbconvert-7.16.0.tar.gz", hash = "sha256:813e6553796362489ae572e39ba1bff978536192fb518e10826b0e8cadf03ec8"},
+    {file = "nbconvert-7.16.1-py3-none-any.whl", hash = "sha256:3188727dffadfdc9c6a1c7250729063d7bc78b355ad7aa023138afa030d1cd07"},
+    {file = "nbconvert-7.16.1.tar.gz", hash = "sha256:e79e6a074f49ba3ed29428ed86487bf51509d9aab613bd8522ac08f6d28fd7fd"},
 ]
 
 [package.dependencies]
@@ -6135,13 +6135,13 @@ test = ["pytest", "pytest-cov"]
 
 [[package]]
 name = "xlsxwriter"
-version = "3.1.9"
+version = "3.2.0"
 description = "A Python module for creating Excel XLSX files."
 optional = true
 python-versions = ">=3.6"
 files = [
-    {file = "XlsxWriter-3.1.9-py3-none-any.whl", hash = "sha256:b61c1a0c786f82644936c0936ec96ee96cd3afb9440094232f7faef9b38689f0"},
-    {file = "XlsxWriter-3.1.9.tar.gz", hash = "sha256:de810bf328c6a4550f4ffd6b0b34972aeb7ffcf40f3d285a0413734f9b63a929"},
+    {file = "XlsxWriter-3.2.0-py3-none-any.whl", hash = "sha256:ecfd5405b3e0e228219bcaf24c2ca0915e012ca9464a14048021d21a995d490e"},
+    {file = "XlsxWriter-3.2.0.tar.gz", hash = "sha256:9977d0c661a72866a61f9f7a809e25ebbb0fb7036baa3b9fe74afcfca6b3cb8c"},
 ]
 
 [[package]]
diff --git a/pyproject.toml b/pyproject.toml
index bbde14d1b..7b4d5b730 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "SpectraFit"
-version = "1.0.0.post0"
+version = "1.0.0.post1"
 description = "Fast fitting of 2D- and 3D-Spectra with established routines"
 readme = "README.md"
 authors = ["Anselm Hahn <anselm.hahn@gmail.com>"]
diff --git a/spectrafit/__init__.py b/spectrafit/__init__.py
index a13729195..ad5186e1c 100644
--- a/spectrafit/__init__.py
+++ b/spectrafit/__init__.py
@@ -5,4 +5,4 @@
     SpectraFit uses [Semantic Versioning](https://semver.org/).
 """
 
-__version__ = "1.0.0.post0"
+__version__ = "1.0.0.post1"
diff --git a/spectrafit/report.py b/spectrafit/report.py
index 53ab4435a..29dcd8e8b 100644
--- a/spectrafit/report.py
+++ b/spectrafit/report.py
@@ -640,7 +640,7 @@ def generate_variables(self) -> pd.DataFrame:
             if par.stderr is not None:
                 serr = gformat(par.stderr)
                 try:
-                    spercent = abs(par.stderr / par.value)
+                    spercent = abs(par.stderr / par.value) * 100
                 except ZeroDivisionError:  # pragma: no cover
                     spercent = None
 
@@ -649,7 +649,7 @@ def generate_variables(self) -> pd.DataFrame:
                 "value": sval,
                 "stderr absolute": serr,
                 "stderr percent": spercent,
-                "expr": par.expr if par.expr is not None else "",
+                "expr": par.expr,
                 "init": inval,
                 "model_value": model_val,
                 "fixed": par.vary,