diff --git a/.github/workflows/build-sphinx-thesis.yml b/.github/workflows/build-sphinx-thesis.yml
index 60b2eab..511b0d3 100644
--- a/.github/workflows/build-sphinx-thesis.yml
+++ b/.github/workflows/build-sphinx-thesis.yml
@@ -79,25 +79,25 @@ jobs:
           make latex
       - name: "Remove numbering from subsections"
         working-directory: thesis/build/latex/
-        run: sed --regexp-extended --in-place s/[\]subsection[{]/\subsection*{/g progettazioneesviluppodisophonapplicativocloudasupportodellaricerca.tex
+        run: sed --regexp-extended --in-place 's/[\]subsection[{]/\subsection*{/g' progettazioneesviluppodisophonapplicativocloudasupportodellaricerca.tex
       - name: "Remove numbering from subsubsections"
         working-directory: thesis/build/latex/
-        run: sed --regexp-extended --in-place s/[\]subsubsection[{]/\subsubsection*{/g progettazioneesviluppodisophonapplicativocloudasupportodellaricerca.tex
+        run: sed --regexp-extended --in-place 's/[\]subsubsection[{]/\subsubsection*{/g' progettazioneesviluppodisophonapplicativocloudasupportodellaricerca.tex
       - name: "Remove numbering from paragraphs"
         working-directory: thesis/build/latex/
-        run: sed --regexp-extended --in-place s/[\]paragraph[{]/\paragraph*{/g progettazioneesviluppodisophonapplicativocloudasupportodellaricerca.tex
+        run: sed --regexp-extended --in-place 's/[\]paragraph[{]/\paragraph*{/g' progettazioneesviluppodisophonapplicativocloudasupportodellaricerca.tex
       - name: "Remove numbering from subparagraphs"
         working-directory: thesis/build/latex/
-        run: sed --regexp-extended --in-place s/[\]subparagraph[{]/\subparagraph*{/g progettazioneesviluppodisophonapplicativocloudasupportodellaricerca.tex
+        run: sed --regexp-extended --in-place 's/[\]subparagraph[{]/\subparagraph*{/g' progettazioneesviluppodisophonapplicativocloudasupportodellaricerca.tex
       - name: "Rename genindex to 'Indice analitico'"
         working-directory: thesis/build/latex/
-        run: sed --regexp-extended --in-place s/[{][\]indexname[}][{]Indice[}]/{\indexname}{Indice analitico}/g
+        run: sed --regexp-extended --in-place 's/[{][\]indexname[}][{]Indice[}]/{\indexname}{Indice analitico}/g'
       - name: "Remove modindex"
         working-directory: thesis/build/latex/
-        run: sed --regexp-extended --in-place s/[\]renewcommand[{][\]indexname[}][{]Indice del modulo Python[}].*[\]end[{]sphinxtheindex[}]//g
+        run: sed --regexp-extended --in-place 's/[\]renewcommand[{][\]indexname[}][{]Indice del modulo Python[}].*[\]end[{]sphinxtheindex[}]//gs'
       - name: "Remove routing table"
         working-directory: thesis/build/latex/
-        run: sed --regexp-extended --in-place s/[\]renewcommand[{][\]indexname[}][{]HTTP Routing Table[}].*[\]end[{]sphinxtheindex[}]//g
+        run: sed --regexp-extended --in-place 's/[\]renewcommand[{][\]indexname[}][{]HTTP Routing Table[}].*[\]end[{]sphinxtheindex[}]//gs'
       - name: "Build PDF document with Latexmk"
         working-directory: thesis/build/latex/
         run: make