diff --git a/CAS/Dumb/LaTeX/Symbols.hs b/CAS/Dumb/LaTeX/Symbols.hs
--- a/CAS/Dumb/LaTeX/Symbols.hs
+++ b/CAS/Dumb/LaTeX/Symbols.hs
@@ -65,7 +65,6 @@
                            "abcdefghijklmnopqrstuvwxyz"
  <|> mapToLaTeXWith mathbf ['𝐚'..'𝐳']
                            ['a'..'z']
-#if __GLASGOW_HASKELL__ > 802
  <|> mapToLaTeXWith id     ['𝐴'..'𝑍']
                            ['A'..'Z']
  <|> mapToLaTeXWith mathbf ['𝐀'..'𝐙']
@@ -76,18 +75,15 @@
                             ['A'..'Z']
  <|> mapToLaTeXWith mathfrak "𝔄𝔅ℭ𝔇𝔈𝔉𝔊ℌℑ𝔍𝔎𝔏𝔐𝔑𝔒𝔓𝔔ℜ𝔖𝔗𝔘𝔙𝔚𝔛𝔜"
                              "ABCDEFGHIJKLMNOPQRSTUVWXY"
-#endif
  <|> fromAssocList (zip
            ['α',  'β', 'γ',  'δ',  'ε',       'ζ', 'η','θ',  'ϑ',     'ι', 'κ',  'λ'   ]
            [alpha,beta,gamma,delta,varepsilon,zeta,eta,theta,vartheta,iota,kappa,lambda])
  <|> fromAssocList (zip
            ['μ','ν','ξ','π','ρ','ϱ',   'σ',  'ς',     'τ','υ',    'ϕ','φ',   'χ','ψ', 'ω' ]
            [mu, nu, xi, pi, rho,varrho,sigma,varsigma,tau,upsilon,phi,varphi,chi,psi,omega])
-#if __GLASGOW_HASKELL__ > 802
  <|> fromAssocList (zip
            ['Γ',   'Δ',   'Θ',   'Λ',    'Ξ','Π','Σ',   'Υ',     'Φ', 'Ψ', 'Ω'   ]
            [gammau,deltau,thetau,lambdau,xiu,piu,sigmau,upsilonu,phiu,psiu,omegau])
-#endif
  <|> fromAssocList (zip
            ['+', '-', '*',           '±',         '∓'        ]
            ["+", "-", raw"{\\cdot}", raw"{\\pm}", raw"{\\mp}"])
diff --git a/Math/LaTeX/Internal/MathExpr.hs b/Math/LaTeX/Internal/MathExpr.hs
--- a/Math/LaTeX/Internal/MathExpr.hs
+++ b/Math/LaTeX/Internal/MathExpr.hs
@@ -162,7 +162,7 @@
                   (Fixity 4 InfixL)
                   True
                   [ ("⩵", [e|""LaTeX.=:""|])
-#if __GLASGOW_HASKELL__ > 802
+#if __GLASGOW_HASKELL__ > 801
                   , ("⸪=", [e|raw"{:=}"|])
                   , ("=⸪", [e|raw"{=:}"|])
 #endif
@@ -291,7 +291,7 @@
                   True
                   [ ("␣", [e|raw"\\ "|])
                   , ("...", [e|raw"{\\ldots}"|])
-#if __GLASGOW_HASKELL__ > 802
+#if __GLASGOW_HASKELL__ > 801
                   , ("،", [e|raw","|])
                   , ("،..،", [e|raw",\\ldots,"|])
 #endif
diff --git a/Math/LaTeX/Prelude.hs b/Math/LaTeX/Prelude.hs
--- a/Math/LaTeX/Prelude.hs
+++ b/Math/LaTeX/Prelude.hs
@@ -19,7 +19,7 @@
    , (%$>), prime, LaTeX.bar, LaTeX.hat, LaTeX.vec, LaTeX.underline, LaTeX.tilde
    -- * Operators
    , (°), (⁀), (...)
-#if __GLASGOW_HASKELL__ > 802
+#if __GLASGOW_HASKELL__ > 801
    , (،..،), (،), (⸪=), (=⸪)
 #endif
    , (␣), (+..+), (*..*), (×), (⊗), (∘), factorial
diff --git a/TeX-my-math.cabal b/TeX-my-math.cabal
--- a/TeX-my-math.cabal
+++ b/TeX-my-math.cabal
@@ -1,5 +1,5 @@
 Name:                TeX-my-math
-Version:             0.201.1.0
+Version:             0.201.1.1
 Category:            math
 Synopsis:            Render general Haskell math to LaTeX. Or: math typesetting with high signal-to-noise–ratio.
 Description:         For tl;dr: look at <https://github.com/leftaroundabout/Symbolic-math-HaTeX/blob/master/EXAMPLES.md>.
@@ -44,7 +44,7 @@
   Build-Depends:     base>=4.8 && <4.11
                      , HaTeX>3.4
                      , vector-space
-                     , dumb-cas >= 0.1 && < 0.2
+                     , dumb-cas >= 0.1.1.1 && < 0.2
                      , decimal-literals
                      , text
                      , void
diff --git a/test/PdfSnippets/MkSnippets.hs b/test/PdfSnippets/MkSnippets.hs
--- a/test/PdfSnippets/MkSnippets.hs
+++ b/test/PdfSnippets/MkSnippets.hs
@@ -48,7 +48,7 @@
 tests = testGroup "Tests"
   [ testGroup "Simple expressions"
      [ [mkLaTeXSnip|        𝑎 + 𝑏 * 𝑐 |] "a+b{\\cdot}c"
-#if __GLASGOW_HASKELL__ > 802
+#if __GLASGOW_HASKELL__ > 801
      , [mkLaTeXSnip|        𝐴 * 𝐵 + 𝐶 |] "A{\\cdot}B+C"
 #endif
      , [mkLaTeXSnip|      (𝑎 + 𝑏) * 𝑐 |] "\\left(a+b\\right){\\cdot}c"
@@ -87,13 +87,13 @@
         [ [mkLaTeXSnip|         𝑎◞𝑏 |] "a_{b}"
         , [mkLaTeXSnip|    𝑎◞◝(𝑏,𝑐) |] "a_{b}^{c}"
         , [mkLaTeXSnip|     ψ◞"Foo" |] "\\psi{}_{\\mathrm{Foo}}"
-#if __GLASGOW_HASKELL__ > 802
+#if __GLASGOW_HASKELL__ > 801
         , [mkLaTeXSnip|     ψ◞𝐹⁀𝑜⁀𝑜 |] "\\psi{}_{Foo}"
 #endif
         ]
      , testGroup "Function application"
         [ [mkLaTeXSnip|         𝑓°𝑥 |] "f\\left(x\\right)"
-#if __GLASGOW_HASKELL__ > 802
+#if __GLASGOW_HASKELL__ > 801
         , [mkLaTeXSnip|     𝑓°(𝑥،𝑦) |] "f\\left(x,y\\right)"
 #endif
         ]
@@ -113,7 +113,7 @@
         , [mkLaTeXSnip| 𝑎 ⪡ ρ |] "a<\\rho{}"
         , [mkLaTeXSnip| 𝑥 ⩵ 𝑦 ⩵ 𝑧 |] "x=y=z"
         , [mkLaTeXSnip| 𝑠 ⊂ 𝑡 ⊆ 𝑢 |] "s\\subset{}t\\subseteq{}u"
-#if __GLASGOW_HASKELL__ > 802
+#if __GLASGOW_HASKELL__ > 801
         , [mkLaTeXSnip| 𝑝 ∈ ℚ ⊂ ℝ |] "p\\in{}\\mathbb{Q}\\subset{}\\mathbb{R}"
 #endif
         ]